From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../tests/html/editing/dnd/microdata/000.html      |  93 ++++++++++++
 .../tests/html/editing/dnd/microdata/001.html      | 128 +++++++++++++++++
 .../tests/html/editing/dnd/microdata/002.html      | 106 ++++++++++++++
 .../tests/html/editing/dnd/microdata/003.html      | 132 +++++++++++++++++
 .../tests/html/editing/dnd/microdata/004.html      | 116 +++++++++++++++
 .../tests/html/editing/dnd/microdata/005.html      | 115 +++++++++++++++
 .../tests/html/editing/dnd/microdata/006.html      | 105 ++++++++++++++
 .../tests/html/editing/dnd/microdata/007.html      | 116 +++++++++++++++
 .../tests/html/editing/dnd/microdata/008.html      |  94 ++++++++++++
 .../tests/html/editing/dnd/microdata/009.html      |  98 +++++++++++++
 .../tests/html/editing/dnd/microdata/010.html      | 104 ++++++++++++++
 .../tests/html/editing/dnd/microdata/011.html      | 107 ++++++++++++++
 .../tests/html/editing/dnd/microdata/012.html      | 104 ++++++++++++++
 .../tests/html/editing/dnd/microdata/013.html      | 104 ++++++++++++++
 .../tests/html/editing/dnd/microdata/014.html      |  97 +++++++++++++
 .../tests/html/editing/dnd/microdata/015.html      |  99 +++++++++++++
 .../tests/html/editing/dnd/microdata/016.html      | 160 +++++++++++++++++++++
 .../tests/html/editing/dnd/microdata/017.html      | 137 ++++++++++++++++++
 .../tests/html/editing/dnd/microdata/018.html      |  95 ++++++++++++
 .../tests/html/editing/dnd/microdata/019.html      |  96 +++++++++++++
 .../tests/html/editing/dnd/microdata/020.html      |  99 +++++++++++++
 .../tests/html/editing/dnd/microdata/021.html      | 104 ++++++++++++++
 .../tests/html/editing/dnd/microdata/test          |   2 +
 23 files changed, 2411 insertions(+)
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/000.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/001.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/002.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/003.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/004.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/005.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/006.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/007.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/008.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/009.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/010.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/011.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/012.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/013.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/014.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/015.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/016.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/017.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/018.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/019.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/020.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/021.html
 create mode 100644 testing/web-platform/tests/html/editing/dnd/microdata/test

(limited to 'testing/web-platform/tests/html/editing/dnd/microdata')

diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/000.html b/testing/web-platform/tests/html/editing/dnd/microdata/000.html
new file mode 100644
index 0000000000..b6e641d08f
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/000.html
@@ -0,0 +1,93 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - no microdata for no itemscope</title>
+<style>
+  body > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div * {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    left: 250px;
+  }
+  body > div + div + div {
+    background-color: fuchsia;
+    left: 500px;
+  }
+  p:first-of-type {
+    margin-top: 220px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[0];
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.nextSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items collection'; }
+  if( md.items.length != 0 ) { return 'unexpected items found'; }
+  return '';
+}
+
+</script>
+
+<div draggable='true'></div><div></div><div></div>
+
+<p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/001.html b/testing/web-platform/tests/html/editing/dnd/microdata/001.html
new file mode 100644
index 0000000000..3f13565868
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/001.html
@@ -0,0 +1,128 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata for non looping simple drop</title>
+<style>
+  body > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div * {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    left: 250px;
+  }
+  body > div + div + div {
+    background-color: fuchsia;
+    left: 500px;
+  }
+  p:first-of-type {
+    margin-top: 220px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[0];
+
+  orange.appendChild( makeEl('meta',{itemprop:'foo',content:'test'}) );
+  orange.appendChild( makeEl('audio',{itemprop:'bar',src:'test'},'fail') );
+  orange.appendChild( makeEl('embed',{itemprop:'foo',src:'test'}) );
+  orange.appendChild( makeEl('iframe',{itemprop:'bar',src:'test'},'fail') );
+  orange.appendChild( makeEl('img',{itemprop:'foo',src:'test'}) );
+  orange.appendChild( makeEl('source',{itemprop:'bar',src:'test'}) );
+  orange.appendChild( makeEl('track',{itemprop:'foo',src:'test'}) );
+  orange.appendChild( makeEl('video',{itemprop:'bar',src:'test'},'fail') );
+  orange.appendChild( makeEl('a',{itemprop:'foo',href:'test'},'fail') );
+  orange.appendChild( makeEl('area',{itemprop:'bar',href:'test'}) );
+  orange.appendChild( makeEl('link',{itemprop:'foo',href:'test'}) );
+  orange.appendChild( makeEl('object',{itemprop:'bar',data:'test'},'fail') );
+  orange.appendChild( makeEl('time',{itemprop:'foo'},'fail') );
+  orange.appendChild( makeEl('time',{itemprop:'baz',datetime:'test'},'fail') );
+  orange.appendChild( makeEl('div',{itemprop:'baz'},'test') );
+  orange.appendChild( makeEl('madeuponthespot',{itemprop:'foo'},'test') );
+  orange.appendChild( makeEl('madeuponthespot',{itemprop:'foo',content:'test',src:'test',href:'test',data:'test',datetime:'test',value:'test'},'test') );
+  orange.appendChild( makeEl('input',{itemprop:'foo',value:'test'},'test') );
+
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.nextSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items || md.items.length != 1 ) { return 'no items'; }
+  if( !md.items[0].properties ) { return 'no properties'; }
+  if( !md.items[0].properties.foo ) { return 'no properties.foo'; }
+  if( !md.items[0].properties.bar ) { return 'no properties.bar'; }
+  if( !md.items[0].properties.baz ) { return 'no properties.baz'; }
+  if( md.items[0].properties.foo.length != 10 ) { return 'properties.foo length '+md.items[0].properties.foo.length+' instead of 10'; }
+  if( md.items[0].properties.bar.length != 6 ) { return 'properties.bar length '+md.items[0].properties.bar.length+' instead of 6'; }
+  if( md.items[0].properties.baz.length != 2 ) { return 'properties.baz length '+md.items[0].properties.baz.length+' instead of 2'; }
+  for( i = 0; i < 10; i++ ) {
+    if( md.items[0].properties.foo[i] != orange.properties.namedItem('foo').getValues()[i] ) { return 'properties.foo['+i+'] <i>'+md.items[0].properties.foo[i]+'</i> instead of <i>'+orange.properties.namedItem('foo').getValues()[i]+'</i>'; }
+  }
+  for( i = 0; i < 6; i++ ) {
+    if( md.items[0].properties.bar[i] != orange.properties.namedItem('bar').getValues()[i] ) { return 'properties.bar['+i+'] <i>'+md.items[0].properties.bar[i]+'</i> instead of <i>'+orange.properties.namedItem('bar').getValues()[i]+'</i>'; }
+  }
+  for( i = 0; i < 2; i++ ) {
+    if( md.items[0].properties.baz[i] != orange.properties.namedItem('baz').getValues()[i] ) { return 'properties.baz['+i+'] <i>'+md.items[0].properties.baz[i]+'</i> instead of <i>'+orange.properties.namedItem('baz').getValues()[i]+'</i>'; }
+  }
+  return '';
+}
+
+</script>
+
+<div draggable='true' itemscope></div><div></div><div></div>
+
+<p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/002.html b/testing/web-platform/tests/html/editing/dnd/microdata/002.html
new file mode 100644
index 0000000000..4e9a5e6de1
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/002.html
@@ -0,0 +1,106 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata with itemref</title>
+<style>
+  body > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div *, span {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    left: 250px;
+  }
+  body > div + div + div {
+    background-color: fuchsia;
+    left: 500px;
+  }
+  p:first-of-type {
+    margin-top: 220px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[0];
+
+  orange.parentNode.insertBefore( makeEl('span',{itemprop:'foo',id:'id1'},'dummytext1 '), orange );
+  orange.parentNode.appendChild( makeEl('span',{itemprop:'bar',id:'id2'},'dummytext2 ') );
+  orange.parentNode.appendChild( makeEl('span',{itemprop:'foo',id:'id3'},'dummytext3 ') );
+
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.nextSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items || md.items.length != 1 ) { return 'no items'; }
+  if( !md.items[0].properties ) { return 'no properties'; }
+  if( !md.items[0].properties.foo ) { return 'no properties.foo'; }
+  if( !md.items[0].properties.bar ) { return 'no properties.bar'; }
+  if( md.items[0].properties.foo.length != 2 ) { return 'properties.foo length '+md.items[0].properties.foo.length+' instead of 2'; }
+  if( md.items[0].properties.bar.length != 1 ) { return 'properties.bar length '+md.items[0].properties.bar.length+' instead of 1'; }
+  for( i = 0; i < 2; i++ ) {
+    if( md.items[0].properties.foo[i] != orange.properties.namedItem('foo').getValues()[i] ) { return 'properties.foo['+i+'] <i>'+md.items[0].properties.foo[i]+'</i> instead of <i>'+orange.properties.namedItem('foo').getValues()[i]+'</i>'; }
+  }
+  if( md.items[0].properties.bar[0] != orange.properties.namedItem('bar').getValues()[0] ) { return 'properties.bar[0] <i>'+md.items[0].properties.bar[i]+'</i> instead of <i>'+orange.properties.namedItem('bar').getValues()[0]+'</i>'; }
+  return '';
+}
+
+</script>
+
+<div draggable='true' itemscope itemref='id3 id2 id1'></div><div></div><div></div>
+
+<p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/003.html b/testing/web-platform/tests/html/editing/dnd/microdata/003.html
new file mode 100644
index 0000000000..1bd0ced463
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/003.html
@@ -0,0 +1,132 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata changes after dragstart</title>
+<style>
+  body > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div * {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    left: 250px;
+  }
+  body > div + div + div {
+    background-color: fuchsia;
+    left: 500px;
+  }
+  p:first-of-type {
+    margin-top: 220px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[0];
+
+  orange.appendChild( makeEl('meta',{itemprop:'foo',content:'test'}) );
+  orange.appendChild( makeEl('audio',{itemprop:'bar',src:'test'},'fail') );
+  orange.appendChild( makeEl('embed',{itemprop:'foo',src:'test'}) );
+  orange.appendChild( makeEl('iframe',{itemprop:'bar',src:'test'},'fail') );
+  orange.appendChild( makeEl('img',{itemprop:'foo',src:'test'}) );
+  orange.appendChild( makeEl('source',{itemprop:'bar',src:'test'}) );
+  orange.appendChild( makeEl('track',{itemprop:'foo',src:'test'}) );
+  orange.appendChild( makeEl('video',{itemprop:'bar',src:'test'},'fail') );
+  orange.appendChild( makeEl('a',{itemprop:'foo',href:'test'},'fail') );
+  orange.appendChild( makeEl('area',{itemprop:'bar',href:'test'}) );
+  orange.appendChild( makeEl('link',{itemprop:'foo',href:'test'}) );
+  orange.appendChild( makeEl('object',{itemprop:'bar',data:'test'},'fail') );
+  orange.appendChild( makeEl('time',{itemprop:'foo'},'fail') );
+  orange.appendChild( makeEl('time',{itemprop:'baz',datetime:'test'},'fail') );
+  orange.appendChild( makeEl('div',{itemprop:'baz'},'test') );
+  orange.appendChild( makeEl('madeuponthespot',{itemprop:'foo'},'test') );
+  orange.appendChild( makeEl('madeuponthespot',{itemprop:'foo',content:'test',src:'test',href:'test',data:'test',datetime:'test',value:'test'},'test') );
+  orange.appendChild( makeEl('input',{itemprop:'foo',value:'test'},'test') );
+
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    //microdata should be stored and reused after the dragstart event
+    //removing the item should not cause the microdata tohave disappeared when the drop event fires
+    this.itemScope = false;
+  };
+  orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.nextSibling.ondrop = function(e) {
+    var err, md = e.dataTransfer.getData('application/microdata+json');
+    orange.itemScope = true;
+    if( err = checkprops(md) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items || md.items.length != 1 ) { return 'no items'; }
+  if( !md.items[0].properties ) { return 'no properties'; }
+  if( !md.items[0].properties.foo ) { return 'no properties.foo'; }
+  if( !md.items[0].properties.bar ) { return 'no properties.bar'; }
+  if( !md.items[0].properties.baz ) { return 'no properties.baz'; }
+  if( md.items[0].properties.foo.length != 10 ) { return 'properties.foo length '+md.items[0].properties.foo.length+' instead of 10'; }
+  if( md.items[0].properties.bar.length != 6 ) { return 'properties.bar length '+md.items[0].properties.bar.length+' instead of 6'; }
+  if( md.items[0].properties.baz.length != 2 ) { return 'properties.baz length '+md.items[0].properties.baz.length+' instead of 2'; }
+  for( i = 0; i < 10; i++ ) {
+    if( md.items[0].properties.foo[i] != orange.properties.namedItem('foo').getValues()[i] ) { return 'properties.foo['+i+'] <i>'+md.items[0].properties.foo[i]+'</i> instead of <i>'+orange.properties.namedItem('foo').getValues()[i]+'</i>'; }
+  }
+  for( i = 0; i < 6; i++ ) {
+    if( md.items[0].properties.bar[i] != orange.properties.namedItem('bar').getValues()[i] ) { return 'properties.bar['+i+'] <i>'+md.items[0].properties.bar[i]+'</i> instead of <i>'+orange.properties.namedItem('bar').getValues()[i]+'</i>'; }
+  }
+  for( i = 0; i < 2; i++ ) {
+    if( md.items[0].properties.baz[i] != orange.properties.namedItem('baz').getValues()[i] ) { return 'properties.baz['+i+'] <i>'+md.items[0].properties.baz[i]+'</i> instead of <i>'+orange.properties.namedItem('baz').getValues()[i]+'</i>'; }
+  }
+  return '';
+}
+
+</script>
+
+<div draggable='true' itemscope></div><div></div><div></div>
+
+<p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/004.html b/testing/web-platform/tests/html/editing/dnd/microdata/004.html
new file mode 100644
index 0000000000..7ed821e54f
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/004.html
@@ -0,0 +1,116 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata with nested item as property</title>
+<style>
+  body > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div * {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    left: 250px;
+  }
+  body > div + div + div {
+    background-color: fuchsia;
+    left: 500px;
+  }
+  p:first-of-type {
+    margin-top: 220px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[0];
+
+  orange.appendChild( makeEl('div',{itemprop:'foo',itemscope:'itemscope'},'') );
+  orange.appendChild( makeEl('div',{itemprop:'foo',itemscope:'itemscope'},'') );
+  orange.lastChild.appendChild( makeEl('div',{itemprop:'bar'},'test') );
+  orange.appendChild( makeEl('div',{itemprop:'bar',itemscope:'itemscope'},'') );
+
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.nextSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 1 ) { return md.items.length+' items instead of 1'; }
+  if( !md.items[0].properties ) { return 'no properties'; }
+  if( !md.items[0].properties.foo ) { return 'no properties.foo'; }
+  if( !md.items[0].properties.bar ) { return 'no properties.bar'; }
+  if( md.items[0].properties.foo.length != 2 ) { return 'properties.foo length '+md.items[0].properties.foo.length+' instead of 2'; }
+  if( md.items[0].properties.bar.length != 1 ) { return 'properties.bar length '+md.items[0].properties.bar.length+' instead of 1'; }
+
+  if( !md.items[0].properties.foo[0] ) { return 'properties.foo[0] <i>'+md.items[0].properties.foo[0]+'</i> instead of <i>{properties:{}}</i>'; }
+  if( !md.items[0].properties.foo[0].properties ) { return 'properties.foo[0].properties <i>'+md.items[0].properties.foo[0].properties+'</i> instead of <i>{}</i>'; }
+
+  if( !md.items[0].properties.foo[1] ) { return 'properties.foo[1] <i>'+md.items[0].properties.foo[1]+'</i> instead of <i>{properties:{bar:[test]}}</i>'; }
+  if( !md.items[0].properties.foo[1].properties ) { return 'properties.foo[1].properties <i>'+md.items[0].properties.foo[1].properties+'</i> instead of <i>{bar:[test]}</i>'; }
+  if( !md.items[0].properties.foo[1].properties.bar ) { return 'properties.foo[1].properties.bar <i>'+md.items[0].properties.foo[1].properties.bar+'</i> instead of <i>[test]</i>'; }
+  if( !md.items[0].properties.foo[1].properties.bar.length ) { return 'properties.foo[1].properties.bar.length <i>'+md.items[0].properties.foo[1].properties.bar.length+'</i> instead of 1'; }
+  if( md.items[0].properties.foo[1].properties.bar[0] != 'test') { return 'properties.foo[1].properties.bar[0] <i>'+md.items[0].properties.foo[1].properties.bar[0]+'</i> instead of <i>test</i>'; }
+
+  if( !md.items[0].properties.bar[0] ) { return 'properties.bar[0] <i>'+md.items[0].properties.bar[0]+'</i> instead of <i>{properties:{}}</i>'; }
+  if( !md.items[0].properties.bar[0].properties ) { return 'properties.bar[0].properties <i>'+md.items[0].properties.bar[0].properties+'</i> instead of <i>{}</i>'; }
+  return '';
+}
+
+</script>
+
+<div draggable='true' itemscope></div><div></div><div></div>
+
+<p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/005.html b/testing/web-platform/tests/html/editing/dnd/microdata/005.html
new file mode 100644
index 0000000000..ae83f6d5f5
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/005.html
@@ -0,0 +1,115 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata with nested item as non-property</title>
+<style>
+  body > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div * {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    left: 250px;
+  }
+  body > div + div + div {
+    background-color: fuchsia;
+    left: 500px;
+  }
+  p:first-of-type {
+    margin-top: 220px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[0];
+
+  orange.appendChild( makeEl('div',{itemprop:'foo',itemscope:'itemscope'},'') );
+  orange.appendChild( makeEl('div',{itemscope:'itemscope'},'') );
+  orange.lastChild.appendChild( makeEl('div',{itemprop:'bar'},'test') );
+  orange.appendChild( makeEl('div',{itemprop:'bar',itemscope:'itemscope'},'') );
+
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.nextSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  // http://dev.w3.org/html5/md/#drag-and-drop
+  //"The user agent must take the list of dragged nodes and extract the microdata from those nodes into a JSON form"
+  // http://dev.w3.org/html5/spec/dnd.html#drag-and-drop-processing-model
+  //"the list of dragged nodes contains only the source node, if any."
+  //nested items should only be in the items list if they are in a dragged *selection*
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 1 ) { return md.items.length+' items instead of 1'; }
+  if( !md.items[0].properties ) { return 'no properties'; }
+  if( !md.items[0].properties.foo ) { return 'no properties.foo'; }
+  if( !md.items[0].properties.bar ) { return 'no properties.bar'; }
+  if( md.items[0].properties.foo.length != 1 ) { return 'properties.foo length '+md.items[0].properties.foo.length+' instead of 1'; }
+  if( md.items[0].properties.bar.length != 1 ) { return 'properties.bar length '+md.items[0].properties.bar.length+' instead of 1'; }
+
+  if( !md.items[0].properties.foo[0] ) { return 'properties.foo[0] <i>'+md.items[0].properties.foo[0]+'</i> instead of <i>{properties:{}}</i>'; }
+  if( !md.items[0].properties.foo[0].properties ) { return 'properties.foo[0].properties <i>'+md.items[0].properties.foo[0].properties+'</i> instead of <i>{}</i>'; }
+
+  if( !md.items[0].properties.bar[0] ) { return 'properties.bar[0] <i>'+md.items[0].properties.bar[0]+'</i> instead of <i>{properties:{}}</i>'; }
+  if( !md.items[0].properties.bar[0].properties ) { return 'properties.bar[0].properties <i>'+md.items[0].properties.bar[0].properties+'</i> instead of <i>{}</i>'; }
+  return '';
+}
+
+</script>
+
+<div draggable='true' itemscope></div><div></div><div></div>
+
+<p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/006.html b/testing/web-platform/tests/html/editing/dnd/microdata/006.html
new file mode 100644
index 0000000000..b9e2ba229e
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/006.html
@@ -0,0 +1,105 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata with type and id</title>
+<style>
+  body > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div * {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    left: 250px;
+  }
+  body > div + div + div {
+    background-color: fuchsia;
+    left: 500px;
+  }
+  p:first-of-type {
+    margin-top: 220px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[0];
+
+  orange.appendChild( makeEl('div',{itemprop:'foo',itemscope:'itemscope',itemtype:'http://example.com/',id:'id2',itemid:'http://example.com/bar'},'') );
+
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.nextSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 1 ) { return md.items.length+' items instead of 1'; }
+  if( md.items[0].type != orange.getAttribute('itemtype') ) { return 'items[0].type <i>'+md.items[0].type+'</i> instead of <i>'+orange.getAttribute('itemtype')+'</i>'; }
+  if( md.items[0].id != orange.getAttribute('itemid') ) { return 'items[0].id <i>'+md.items[0].id+'</i> instead of <i>'+orange.getAttribute('itemid')+'</i>'; }
+  if( !md.items[0].properties ) { return 'no properties'; }
+  if( !md.items[0].properties.foo ) { return 'no properties.foo'; }
+  if( md.items[0].properties.foo.length != 1 ) { return 'properties.foo length '+md.items[0].properties.foo.length+' instead of 1'; }
+  if( !md.items[0].properties.foo[0] ) { return 'properties.foo[0] <i>'+md.items[0].properties.foo[0]+'</i> instead of <i>{...}</i>'; }
+  if( md.items[0].properties.foo[0].type != orange.firstChild.getAttribute('itemtype') ) { return 'items[0].properties.foo[0].type <i>'+md.items[0].properties.foo[0].type+'</i> instead of <i>'+orange.firstChild.getAttribute('itemtype')+'</i>'; }
+  if( md.items[0].properties.foo[0].id != orange.firstChild.getAttribute('itemid') ) { return 'items[0].properties.foo[0].id <i>'+md.items[0].properties.foo[0].id+'</i> instead of <i>'+orange.firstChild.getAttribute('itemid')+'</i>'; }
+  if( !md.items[0].properties.foo[0].properties ) { return 'properties.foo[0].properties <i>'+md.items[0].properties.foo[0].properties+'</i> instead of <i>{}</i>'; }
+  return '';
+}
+
+</script>
+
+<div draggable='true' itemscope id='id1' itemtype='http://example.org/' itemid='http://example.org/foo'></div><div></div><div></div>
+
+<p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/007.html b/testing/web-platform/tests/html/editing/dnd/microdata/007.html
new file mode 100644
index 0000000000..e6eb87d82a
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/007.html
@@ -0,0 +1,116 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata with multiply named item as property</title>
+<style>
+  body > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div * {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    left: 250px;
+  }
+  body > div + div + div {
+    background-color: fuchsia;
+    left: 500px;
+  }
+  p:first-of-type {
+    margin-top: 220px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[0];
+
+  orange.appendChild( makeEl('div',{itemprop:'foo bar',itemscope:'itemscope'},'') );
+  orange.lastChild.appendChild( makeEl('div',{itemprop:'baz'},'test') );
+
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.nextSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 1 ) { return md.items.length+' items instead of 1'; }
+  if( !md.items[0].properties ) { return 'no properties'; }
+  if( !md.items[0].properties.foo ) { return 'no properties.foo'; }
+  if( !md.items[0].properties.bar ) { return 'no properties.bar'; }
+  if( md.items[0].properties.baz ) { return 'properties.baz should not exist'; }
+  if( md.items[0].properties.foo.length != 1 ) { return 'properties.foo length '+md.items[0].properties.foo.length+' instead of 1'; }
+  if( md.items[0].properties.bar.length != 1 ) { return 'properties.bar length '+md.items[0].properties.bar.length+' instead of 1'; }
+
+  if( !md.items[0].properties.foo[0] ) { return 'properties.foo[1] <i>'+md.items[0].properties.foo[0]+'</i> instead of <i>{properties:{baz:[test]}}</i>'; }
+  if( !md.items[0].properties.foo[0].properties ) { return 'properties.foo[0].properties <i>'+md.items[0].properties.foo[0].properties+'</i> instead of <i>{baz:[test]}</i>'; }
+  if( !md.items[0].properties.foo[0].properties.baz ) { return 'properties.foo[0].properties.baz <i>'+md.items[0].properties.foo[0].properties.baz+'</i> instead of <i>[test]</i>'; }
+  if( !md.items[0].properties.foo[0].properties.baz.length ) { return 'properties.foo[0].properties.baz.length <i>'+md.items[0].properties.foo[0].properties.baz.length+'</i> instead of 1'; }
+  if( md.items[0].properties.foo[0].properties.baz[0] != 'test') { return 'properties.foo[0].properties.baz[0] <i>'+md.items[0].properties.foo[0].properties.baz[0]+'</i> instead of <i>test</i>'; }
+
+  if( !md.items[0].properties.bar[0] ) { return 'properties.bar[1] <i>'+md.items[0].properties.bar[0]+'</i> instead of <i>{properties:{baz:[test]}}</i>'; }
+  if( !md.items[0].properties.bar[0].properties ) { return 'properties.bar[0].properties <i>'+md.items[0].properties.bar[0].properties+'</i> instead of <i>{baz:[test]}</i>'; }
+  if( !md.items[0].properties.bar[0].properties.baz ) { return 'properties.bar[0].properties.baz <i>'+md.items[0].properties.bar[0].properties.baz+'</i> instead of <i>[test]</i>'; }
+  if( !md.items[0].properties.bar[0].properties.baz.length ) { return 'properties.bar[0].properties.baz.length <i>'+md.items[0].properties.bar[0].properties.baz.length+'</i> instead of 1'; }
+  if( md.items[0].properties.bar[0].properties.baz[0] != 'test') { return 'properties.bar[0].properties.baz[0] <i>'+md.items[0].properties.bar[0].properties.baz[0]+'</i> instead of <i>test</i>'; }
+
+  return '';
+}
+
+</script>
+
+<div draggable='true' itemscope></div><div></div><div></div>
+
+<p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/008.html b/testing/web-platform/tests/html/editing/dnd/microdata/008.html
new file mode 100644
index 0000000000..d4cd797817
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/008.html
@@ -0,0 +1,94 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - no microdata for selection with no items</title>
+<style>
+  body > div {
+    height: 100px;
+    width: 200px;
+    background-color: fuchsia;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  span span {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    top: 116px;
+  }
+  body > div + div + div {
+    background-color: orange;
+    top: 224px;
+  }
+  p:first-of-type {
+    margin-top: 350px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[2];
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.previousSibling.ondragenter = orange.previousSibling.ondragleave = orange.previousSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.previousSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items collection'; }
+  if( md.items.length != 0 ) { return 'unexpected items found'; }
+  return '';
+}
+
+</script>
+
+<div></div><div></div><div>01<span>23</span>45<span>67</span>89</div>
+
+<p>Use your pointing device to select the text substring "12345678" above, drag the selection upwards to the pink box,
+then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/009.html b/testing/web-platform/tests/html/editing/dnd/microdata/009.html
new file mode 100644
index 0000000000..637cabe017
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/009.html
@@ -0,0 +1,98 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata for selection surrounding one item</title>
+<style>
+  body > div {
+    height: 100px;
+    width: 200px;
+    background-color: fuchsia;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  span * {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    top: 116px;
+  }
+  body > div + div + div {
+    background-color: orange;
+    top: 224px;
+  }
+  p:first-of-type {
+    margin-top: 350px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[2];
+  orange.childNodes[1].appendChild( makeEl('span',{itemprop:'foo'},'test') );
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.previousSibling.ondragenter = orange.previousSibling.ondragleave = orange.previousSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.previousSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items || md.items.length != 1 ) { return 'no items'; }
+  if( !md.items[0].properties ) { return 'no properties'; }
+  if( !md.items[0].properties.foo ) { return 'no properties.foo'; }
+  if( md.items[0].properties.foo.length != 1 ) { return 'properties.foo length '+md.items[0].properties.foo.length+' instead of 1'; }
+  if( md.items[0].properties.foo[0] != orange.childNodes[1].properties.namedItem('foo').getValues()[0] ) { return 'properties.foo[0] <i>'+md.items[0].properties.foo[0]+'</i> instead of <i>'+orange.childNodes[1].properties.namedItem('foo').getValues()[0]+'</i>'; }
+  return '';
+}
+
+</script>
+
+<div></div><div></div><div>01<span itemscope>23</span>45<span>67</span>89</div>
+
+<p>Use your pointing device to select the text substring "12345678" above, drag the selection upwards to the pink box,
+then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/010.html b/testing/web-platform/tests/html/editing/dnd/microdata/010.html
new file mode 100644
index 0000000000..53a6321a3e
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/010.html
@@ -0,0 +1,104 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata for selection surrounding multiple items</title>
+<style>
+  body > div {
+    height: 100px;
+    width: 200px;
+    background-color: fuchsia;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  span * {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    top: 116px;
+  }
+  body > div + div + div {
+    background-color: orange;
+    top: 224px;
+  }
+  p:first-of-type {
+    margin-top: 350px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[2];
+  orange.childNodes[1].appendChild( makeEl('span',{itemprop:'foo'},'test') );
+  orange.childNodes[3].appendChild( makeEl('span',{itemprop:'bar'},'test') );
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.previousSibling.ondragenter = orange.previousSibling.ondragleave = orange.previousSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.previousSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 2 ) { return md.items.length+' items instead of 2'; }
+  if( !md.items[0].properties ) { return 'no items[0].properties'; }
+  if( !md.items[0].properties.foo ) { return 'no items[0].properties.foo'; }
+  if( md.items[0].properties.foo.length != 1 ) { return 'items[0].properties.foo length '+md.items[0].properties.foo.length+' instead of 1'; }
+  if( md.items[0].properties.foo[0] != orange.childNodes[1].properties.namedItem('foo').getValues()[0] ) { return 'items[0].properties.foo[0] <i>'+md.items[0].properties.foo[0]+'</i> instead of <i>'+orange.childNodes[1].properties.namedItem('foo').getValues()[0]+'</i>'; }
+  if( !md.items[1].properties ) { return 'no items[1].properties'; }
+  if( !md.items[1].properties.bar ) { return 'no items[1].properties.bar'; }
+  if( md.items[1].properties.bar.length != 1 ) { return 'items[1].properties.bar length '+md.items[1].properties.bar.length+' instead of 1'; }
+  if( md.items[1].properties.bar[0] != orange.childNodes[1].properties.namedItem('foo').getValues()[0] ) { return 'items[1].properties.bar[0] <i>'+md.items[1].properties.bar[0]+'</i> instead of <i>'+orange.childNodes[1].properties.namedItem('foo').getValues()[0]+'</i>'; }
+  return '';
+}
+
+</script>
+
+<div></div><div></div><div>01<span itemscope>23</span>45<span itemscope>67</span>89</div>
+
+<p>Use your pointing device to select the text substring "12345678" above, drag the selection upwards to the pink box,
+then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/011.html b/testing/web-platform/tests/html/editing/dnd/microdata/011.html
new file mode 100644
index 0000000000..819e5ceab0
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/011.html
@@ -0,0 +1,107 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata for selection partially intersecting multiple items</title>
+<style>
+  body > div {
+    height: 100px;
+    width: 200px;
+    background-color: fuchsia;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  span * {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    top: 116px;
+  }
+  body > div + div + div {
+    background-color: orange;
+    top: 224px;
+  }
+  p:first-of-type {
+    margin-top: 350px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[2];
+  orange.childNodes[1].appendChild( makeEl('span',{itemprop:'foo'},'test') );
+  orange.childNodes[3].appendChild( makeEl('span',{itemprop:'bar'},'test') );
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.previousSibling.ondragenter = orange.previousSibling.ondragleave = orange.previousSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.previousSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  // http://dev.w3.org/html5/spec/dnd.html#list-of-dragged-nodes
+  //"If it is a selection that is being dragged, then the list of dragged nodes contains, in tree order, every node that is partially or completely included in the selection (including all their ancestors)."
+  //given this "ancestors" situation, what is to stop every item in the body from being included? oversight perhaps? tests 18-20 cover this more extensively
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 2 ) { return md.items.length+' items instead of 2'; }
+  if( !md.items[0].properties ) { return 'no items[0].properties'; }
+  if( !md.items[0].properties.foo ) { return 'no items[0].properties.foo'; }
+  if( md.items[0].properties.foo.length != 1 ) { return 'items[0].properties.foo length '+md.items[0].properties.foo.length+' instead of 1'; }
+  if( md.items[0].properties.foo[0] != orange.childNodes[1].properties.namedItem('foo').getValues()[0] ) { return 'items[0].properties.foo[0] <i>'+md.items[0].properties.foo[0]+'</i> instead of <i>'+orange.childNodes[1].properties.namedItem('foo').getValues()[0]+'</i>'; }
+  if( !md.items[1].properties ) { return 'no items[1].properties'; }
+  if( !md.items[1].properties.bar ) { return 'no items[1].properties.bar'; }
+  if( md.items[1].properties.bar.length != 1 ) { return 'items[1].properties.bar length '+md.items[1].properties.bar.length+' instead of 1'; }
+  if( md.items[1].properties.bar[0] != orange.childNodes[1].properties.namedItem('foo').getValues()[0] ) { return 'items[1].properties.bar[0] <i>'+md.items[1].properties.bar[0]+'</i> instead of <i>'+orange.childNodes[1].properties.namedItem('foo').getValues()[0]+'</i>'; }
+  return '';
+}
+
+</script>
+
+<div></div><div></div><div>01<span itemscope>23</span>45<span itemscope>67</span>89</div>
+
+<p>Use your pointing device to select the text substring "3456" above, drag the selection upwards to the pink box,
+then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/012.html b/testing/web-platform/tests/html/editing/dnd/microdata/012.html
new file mode 100644
index 0000000000..307d610e90
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/012.html
@@ -0,0 +1,104 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata for selection surrounding nested property items</title>
+<style>
+  body > div {
+    height: 100px;
+    width: 200px;
+    background-color: fuchsia;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  span * {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    top: 116px;
+  }
+  body > div + div + div {
+    background-color: orange;
+    top: 224px;
+  }
+  p:first-of-type {
+    margin-top: 350px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[2];
+  orange.childNodes[1].appendChild( makeEl('span',{itemscope:'itemscope',itemprop:'foo'},'test') );
+  orange.childNodes[1].lastChild.appendChild( makeEl('span',{itemprop:'bar'},'test') );
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.previousSibling.ondragenter = orange.previousSibling.ondragleave = orange.previousSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.previousSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  //items should be represented at the top level only if they do not have the itemprop attribute
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 1 ) { return md.items.length+' items instead of 1'; }
+  if( !md.items[0].properties ) { return 'no items[0].properties'; }
+  if( !md.items[0].properties.foo ) { return 'no items[0].properties.foo'; }
+  if( md.items[0].properties.foo.length != 1 ) { return 'items[0].properties.foo length '+md.items[0].properties.foo.length+' instead of 1'; }
+  if( !md.items[0].properties.foo[0].properties ) { return 'items[1].properties.foo[0].properties <i>'+md.items[0].properties.foo[0].properties+'</i> instead of <i>{bar:[test]}</i>'; }
+  if( !md.items[0].properties.foo[0].properties.bar ) { return 'items[1].properties.foo[0].properties.bar <i>'+md.items[0].properties.foo[0].properties.bar+'</i> instead of <i>[test]</i>'; }
+  if( md.items[0].properties.foo[0].properties.bar.length != 1 ) { return 'items[1].properties.foo[0].properties.bar.length <i>'+md.items[0].properties.foo[0].properties.bar.length+'</i> instead of 1'; }
+  if( md.items[0].properties.foo[0].properties.bar[0] != 'test') { return 'items[1].properties.foo[0].properties.bar[0] <i>'+md.items[0].properties.foo[0].properties.bar[0]+'</i> instead of <i>test</i>'; }
+  return '';
+}
+
+</script>
+
+<div></div><div></div><div>01<span itemscope>23</span>45<span itemscope itemprop="baz">67</span>89</div>
+
+<p>Use your pointing device to select the text substring "12345678" above, drag the selection upwards to the pink box,
+then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/013.html b/testing/web-platform/tests/html/editing/dnd/microdata/013.html
new file mode 100644
index 0000000000..000a9d7f05
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/013.html
@@ -0,0 +1,104 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata for selection surrounding nested non-property items</title>
+<style>
+  body > div {
+    height: 100px;
+    width: 200px;
+    background-color: fuchsia;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  span * {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    top: 116px;
+  }
+  body > div + div + div {
+    background-color: orange;
+    top: 224px;
+  }
+  p:first-of-type {
+    margin-top: 350px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[2];
+  orange.childNodes[1].appendChild( makeEl('span',{itemscope:'itemscope'},'test') );
+  orange.childNodes[1].lastChild.appendChild( makeEl('span',{itemprop:'bar'},'test') );
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.previousSibling.ondragenter = orange.previousSibling.ondragleave = orange.previousSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.previousSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  //*all* items should be represented at the top level, even if they are nested
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 2 ) { return md.items.length+' items instead of 2'; }
+  if( !md.items[0].properties ) { return 'no items[0].properties'; }
+  if( md.items[0].properties.bar ) { return 'unexpected items[0].properties.bar'; }
+
+  if( !md.items[1].properties ) { return 'no items[1].properties'; }
+  if( !md.items[1].properties.bar ) { return 'no items[1].properties.bar'; }
+  if( md.items[1].properties.bar.length != 1 ) { return 'items[1].properties.bar length '+md.items[1].properties.bar.length+' instead of 1'; }
+  if( md.items[1].properties.bar[0] != 'test' ) { return 'items[1].properties.bar[0] <i>'+md.items[1].properties.bar[0]+'</i> instead of <i>test</i>'; }
+  return '';
+}
+
+</script>
+
+<div></div><div></div><div>01<span itemscope>23</span>45<span>67</span>89</div>
+
+<p>Use your pointing device to select the text substring "12345678" above, drag the selection upwards to the pink box,
+then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/014.html b/testing/web-platform/tests/html/editing/dnd/microdata/014.html
new file mode 100644
index 0000000000..785c059a31
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/014.html
@@ -0,0 +1,97 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata with sibling itemref loop</title>
+<style>
+  body > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div *, span {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    left: 250px;
+  }
+  body > div + div + div {
+    background-color: fuchsia;
+    left: 500px;
+  }
+  p:first-of-type {
+    margin-top: 220px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[0];
+
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.nextSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  // http://dev.w3.org/html5/md/#extracting-json
+  //"check if the element is a top-level microdata item, and if it is"
+  //as it has itemprop, it is not a top-level item, and should be ignored
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 0 ) { return md.items.length+' items instead of 0'; }
+  return '';
+}
+
+</script>
+
+<div draggable='true' itemscope itemprop='foo' id='id1' itemref='id2'></div><div id='id2' itemprop='bar' itemscope itemref='id1'></div><div></div>
+
+<p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/015.html b/testing/web-platform/tests/html/editing/dnd/microdata/015.html
new file mode 100644
index 0000000000..36f2643293
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/015.html
@@ -0,0 +1,99 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata with parent itemref loop</title>
+<style>
+  blockquote > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  blockquote > div *, span {
+    display: none;
+  }
+  blockquote > div + div {
+    background-color: navy;
+    left: 250px;
+  }
+  blockquote > div + div + div {
+    background-color: fuchsia;
+    left: 500px;
+  }
+  p:first-of-type {
+    margin-top: 220px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[0];
+
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.nextSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  // http://dev.w3.org/html5/md/#extracting-json
+  //"check if the element is a top-level microdata item, and if it is"
+  //as it has itemprop, it is not a top-level item, and should be ignored
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 0 ) { return md.items.length+' items instead of 0'; }
+  return '';
+}
+
+</script>
+
+<blockquote id='id1' itemprop='bar' itemscope>
+<div draggable='true' itemscope itemprop='foo' itemref='id1'></div><div></div><div></div>
+</blockquote>
+
+<p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/016.html b/testing/web-platform/tests/html/editing/dnd/microdata/016.html
new file mode 100644
index 0000000000..153098bf89
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/016.html
@@ -0,0 +1,160 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata with nested sibling itemref loop</title>
+<style>
+  body > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div *, span {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    left: 250px;
+  }
+  body > div + div + div {
+    background-color: fuchsia;
+    left: 500px;
+  }
+  p:first-of-type {
+    margin-top: 220px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[0];
+
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.nextSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  // http://dev.w3.org/html5/md/#extracting-json
+  //"If value is an item, then: If value is in memory, then let value be the string "ERROR"."
+  /*
+Loop detection happens only after the loop has been created, at which point it returns a property value
+of "ERROR" instead of the value which has already been encountered on the stringifying stack.
+Should create the following construct:
+{
+  items:[
+    {
+      properties:{
+        foo:[
+          {
+            properties:{
+              bar:[
+                {
+                  properties:{
+                    foo:[
+                      "ERROR"
+                    ]
+                  }
+                }
+              ]
+            }
+          }
+        ],
+        bar:[
+          {
+            properties:{
+              foo:[
+                {
+                  properties:{
+                    bar:[
+                      "ERROR"
+                    ]
+                  }
+                }
+              ]
+            }
+          }
+        ]
+      }
+    }
+  ]
+}
+  */
+
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 1 ) { return md.items.length+' items instead of 1'; }
+  if( !md.items[0].properties ) { return 'no items[0].properties'; }
+  if( !md.items[0].properties.foo ) { return 'no items[0].properties.foo'; }
+  if( md.items[0].properties.foo.length != 1 ) { return 'items[0].properties.foo length '+md.items[0].properties.foo.length+' instead of 1'; }
+  if( !md.items[0].properties.foo[0].properties ) { return 'items[1].properties.foo[0].properties <i>'+md.items[0].properties.foo[0].properties+'</i> instead of object'; }
+  if( !md.items[0].properties.foo[0].properties.bar ) { return 'items[1].properties.foo[0].properties.bar <i>'+md.items[0].properties.foo[0].properties.bar+'</i> instead of array'; }
+  if( md.items[0].properties.foo[0].properties.bar.length != 1 ) { return 'items[1].properties.foo[0].properties.bar.length <i>'+md.items[0].properties.foo[0].properties.bar.length+'</i> instead of 1'; }
+  if( !md.items[0].properties.foo[0].properties.bar[0].properties ) { return 'items[1].properties.foo[0].properties.bar[0].properties <i>'+md.properties.foo[0].properties.bar[0].properties+'</i> instead of object'; }
+  if( !md.items[0].properties.foo[0].properties.bar[0].properties.foo ) { return 'items[1].properties.foo[0].properties.bar[0].properties.foo <i>'+md.items[0].properties.foo[0].properties.bar[0].properties.foo+'</i> instead of array'; }
+  if( md.items[0].properties.foo[0].properties.bar[0].properties.foo.length != 1 ) { return 'items[1].properties.foo[0].properties.bar[0].properties.foo.length <i>'+md.items[0].properties.foo[0].properties.bar[0].properties.foo.length+'</i> instead of 1'; }
+  if( md.items[0].properties.foo[0].properties.bar[0].properties.foo[0] != 'ERROR' ) { return 'items[1].properties.foo[0].properties.bar[0].properties.foo.length <i>'+md.items[0].properties.foo[0].properties.bar[0].properties.foo[0]+'</i> instead of <i>ERROR</a>'; }
+
+  if( !md.items[0].properties.bar ) { return 'no items[0].properties.bar'; }
+  if( md.items[0].properties.bar.length != 1 ) { return 'items[0].properties.bar length '+md.items[0].properties.bar.length+' instead of 1'; }
+  if( !md.items[0].properties.bar[0].properties ) { return 'items[1].properties.bar[0].properties <i>'+md.items[0].properties.bar[0].properties+'</i> instead of object'; }
+  if( !md.items[0].properties.bar[0].properties.foo ) { return 'items[1].properties.bar[0].properties.foo <i>'+md.items[0].properties.bar[0].properties.foo+'</i> instead of array'; }
+  if( md.items[0].properties.bar[0].properties.foo.length != 1 ) { return 'items[1].properties.bar[0].properties.foo.length <i>'+md.items[0].properties.bar[0].properties.foo.length+'</i> instead of 1'; }
+  if( !md.items[0].properties.bar[0].properties.foo[0].properties ) { return 'items[1].properties.bar[0].properties.foo[0].properties <i>'+md.properties.bar[0].properties.foo[0].properties+'</i> instead of object'; }
+  if( !md.items[0].properties.bar[0].properties.foo[0].properties.bar ) { return 'items[1].properties.bar[0].properties.foo[0].properties.bar <i>'+md.items[0].properties.bar[0].properties.foo[0].properties.bar+'</i> instead of array'; }
+  if( md.items[0].properties.bar[0].properties.foo[0].properties.bar.length != 1 ) { return 'items[1].properties.bar[0].properties.foo[0].properties.bar.length <i>'+md.items[0].properties.bar[0].properties.foo[0].properties.bar.length+'</i> instead of 1'; }
+  if( md.items[0].properties.bar[0].properties.foo[0].properties.bar[0] != 'ERROR' ) { return 'items[1].properties.bar[0].properties.foo[0].properties.bar.length <i>'+md.items[0].properties.bar[0].properties.foo[0].properties.bar[0]+'</i> instead of <i>ERROR</a>'; }
+  return '';
+}
+
+</script>
+
+<div draggable='true' itemscope><div itemscope itemprop='foo' id='id1' itemref='id2'></div><div itemscope itemprop='bar' id='id2' itemref='id1'></div></div><div></div><div></div>
+
+<p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/017.html b/testing/web-platform/tests/html/editing/dnd/microdata/017.html
new file mode 100644
index 0000000000..dab270e643
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/017.html
@@ -0,0 +1,137 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata with nested parent itemref loop</title>
+<style>
+  body > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div *, span {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    left: 250px;
+  }
+  body > div + div + div {
+    background-color: fuchsia;
+    left: 500px;
+  }
+  p:first-of-type {
+    margin-top: 220px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[0];
+
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.nextSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  // http://dev.w3.org/html5/md/#extracting-json
+  //"If value is an item, then: If value is in memory, then let value be the string "ERROR"."
+  /*
+Loop detection happens only after the loop has been created, at which point it returns a property value
+of "ERROR" instead of the value which has already been encountered on the stringifying stack.
+Should create the following construct:
+{
+  items:[
+    {
+      properties:{
+        foo:[
+          {
+            properties:{
+              bar:[
+                {
+                  properties:{
+                    foo:[
+                      "ERROR"
+                    ]
+                  }
+                }
+              ]
+            }
+          }
+        ]
+      }
+    }
+  ]
+}
+  */
+
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 1 ) { return md.items.length+' items instead of 1'; }
+  if( !md.items[0].properties ) { return 'no items[0].properties'; }
+  if( !md.items[0].properties.foo ) { return 'no items[0].properties.foo'; }
+  if( md.items[0].properties.foo.length != 1 ) { return 'items[0].properties.foo length '+md.items[0].properties.foo.length+' instead of 1'; }
+  if( !md.items[0].properties.foo[0].properties ) { return 'items[1].properties.foo[0].properties <i>'+md.items[0].properties.foo[0].properties+'</i> instead of object'; }
+  if( !md.items[0].properties.foo[0].properties.bar ) { return 'items[1].properties.foo[0].properties.bar <i>'+md.items[0].properties.foo[0].properties.bar+'</i> instead of array'; }
+  if( md.items[0].properties.foo[0].properties.bar.length != 1 ) { return 'items[1].properties.foo[0].properties.bar.length <i>'+md.items[0].properties.foo[0].properties.bar.length+'</i> instead of 1'; }
+  if( !md.items[0].properties.foo[0].properties.bar[0].properties ) { return 'items[1].properties.foo[0].properties.bar[0].properties <i>'+md.properties.foo[0].properties.bar[0].properties+'</i> instead of object'; }
+  if( !md.items[0].properties.foo[0].properties.bar[0].properties.foo ) { return 'items[1].properties.foo[0].properties.bar[0].properties.foo <i>'+md.items[0].properties.foo[0].properties.bar[0].properties.foo+'</i> instead of array'; }
+  if( md.items[0].properties.foo[0].properties.bar[0].properties.foo.length != 1 ) { return 'items[1].properties.foo[0].properties.bar[0].properties.foo.length <i>'+md.items[0].properties.foo[0].properties.bar[0].properties.foo.length+'</i> instead of 1'; }
+  if( md.items[0].properties.foo[0].properties.bar[0].properties.foo[0] != 'ERROR' ) { return 'items[1].properties.foo[0].properties.bar[0].properties.foo.length <i>'+md.items[0].properties.foo[0].properties.bar[0].properties.foo[0]+'</i> instead of <i>ERROR</a>'; }
+  return '';
+}
+
+</script>
+
+<div draggable='true' itemscope>
+  <span id='id1' itemprop='foo' itemscope><span itemscope itemprop='bar' itemref='id1'></span></span>
+</div><div></div><div></div>
+
+<p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/018.html b/testing/web-platform/tests/html/editing/dnd/microdata/018.html
new file mode 100644
index 0000000000..357ba4f0fe
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/018.html
@@ -0,0 +1,95 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata for selection partially intersecting a single item</title>
+<style>
+  body > div {
+    height: 100px;
+    width: 200px;
+    background-color: fuchsia;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div + div {
+    background-color: navy;
+    top: 116px;
+  }
+  body > div + div + div {
+    background-color: orange;
+    top: 224px;
+  }
+  p:first-of-type {
+    margin-top: 350px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[2];
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.previousSibling.ondragenter = orange.previousSibling.ondragleave = orange.previousSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.previousSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  // http://dev.w3.org/html5/spec/dnd.html#list-of-dragged-nodes
+  //"If it is a selection that is being dragged, then the list of dragged nodes contains, in tree order, every node that is partially or completely included in the selection (including all their ancestors)."
+  //this test checks that the parent of the text node is included
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 1 ) { return md.items.length+' items instead of 1'; }
+  if( md.items[0].id != 'http://example.com/item1' ) { return 'items[0].id incorrect'; }
+  return '';
+}
+
+</script>
+
+<div></div><div></div><div itemscope itemid="http://example.com/item1">abc</div>
+
+<p>Use your pointing device to select the text substring "b" above, drag the selection upwards to the pink box,
+then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/019.html b/testing/web-platform/tests/html/editing/dnd/microdata/019.html
new file mode 100644
index 0000000000..11525214e2
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/019.html
@@ -0,0 +1,96 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata for selection partially intersecting nested items</title>
+<style>
+  body > div {
+    height: 100px;
+    width: 200px;
+    background-color: fuchsia;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div + div {
+    background-color: navy;
+    top: 116px;
+  }
+  body > div + div + div {
+    background-color: orange;
+    top: 224px;
+  }
+  p:first-of-type {
+    margin-top: 350px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[2];
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.previousSibling.ondragenter = orange.previousSibling.ondragleave = orange.previousSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.previousSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  // http://dev.w3.org/html5/spec/dnd.html#list-of-dragged-nodes
+  //"If it is a selection that is being dragged, then the list of dragged nodes contains, in tree order, every node that is partially or completely included in the selection (including all their ancestors)."
+  //this test checks that all ancestors of the text node are included
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 2 ) { return md.items.length+' items instead of 2'; }
+  if( md.items[0].id != 'http://example.com/item1' ) { return 'items[0].id incorrect'; }
+  if( md.items[1].id != 'http://example.com/item2' ) { return 'items[1].id incorrect'; }
+  return '';
+}
+
+</script>
+
+<div></div><div></div><div itemscope itemid="http://example.com/item1">a<span itemscope itemid="http://example.com/item2">bcd</span>e</div>
+
+<p>Use your pointing device to select the text substring "d" above, drag the selection upwards to the pink box,
+then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/020.html b/testing/web-platform/tests/html/editing/dnd/microdata/020.html
new file mode 100644
index 0000000000..33667224ca
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/020.html
@@ -0,0 +1,99 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata for selection partially intersecting multiple items but not siblings</title>
+<style>
+  body > div {
+    height: 100px;
+    width: 400px;
+    background-color: fuchsia;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div + div {
+    background-color: navy;
+    top: 116px;
+  }
+  body > div + div + div {
+    background-color: orange;
+    top: 224px;
+  }
+  p:first-of-type {
+    margin-top: 350px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[2];
+  orange.ondragstart = function(e) {
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.previousSibling.ondragenter = orange.previousSibling.ondragleave = orange.previousSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.previousSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  // http://dev.w3.org/html5/spec/dnd.html#list-of-dragged-nodes
+  //"If it is a selection that is being dragged, then the list of dragged nodes contains, in tree order, every node that is partially or completely included in the selection (including all their ancestors)."
+  //this test checks that all ancestors of the selection's end points are included, and all elements enclosed by the selection are included, but no non-selected siblings of ancestors are included
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 5 ) { return md.items.length+' items instead of 5'; }
+  if( md.items[0].id != 'http://example.com/item1' ) { return 'items[0].id incorrect'; }
+  if( md.items[1].id != 'http://example.com/item4' ) { return 'items[1].id incorrect'; }
+  if( md.items[2].id != 'http://example.com/item5' ) { return 'items[2].id incorrect'; }
+  if( md.items[3].id != 'http://example.com/item6' ) { return 'items[3].id incorrect'; }
+  if( md.items[4].id != 'http://example.com/item7' ) { return 'items[4].id incorrect'; }
+  return '';
+}
+
+</script>
+
+<div></div><div></div><div itemscope itemid="http://example.com/item1"><span itemscope itemid="http://example.com/item2">ab<span itemscope itemid="http://example.com/item3">cd</span>ef</span><span itemscope itemid="http://example.com/item4">gh<span itemscope itemid="http://example.com/item5">ij</span>kl</span><span itemscope itemid="http://example.com/item6">mn<span itemscope itemid="http://example.com/item7">op</span>qr</span><span itemscope itemid="http://example.com/item8">st<span itemscope itemid="http://example.com/item9">uv</span>wx</span></div>
+
+<p>Use your pointing device to select the text substring "hijklmnopq" above, drag the selection upwards to the pink box,
+then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/021.html b/testing/web-platform/tests/html/editing/dnd/microdata/021.html
new file mode 100644
index 0000000000..62e1864bef
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/021.html
@@ -0,0 +1,104 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - microdata when addElement is used</title>
+<style>
+  body > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+    position: absolute;
+    top: 8px;
+    left: 8px;
+  }
+  body > div * {
+    display: none;
+  }
+  body > div + div {
+    background-color: navy;
+    left: 250px;
+  }
+  body > div + div + div {
+    background-color: fuchsia;
+    left: 500px;
+  }
+  p:first-of-type {
+    margin-top: 220px;
+  }
+</style>
+
+<script>
+
+function makeEl(eltype,props,contents) {
+  var elem = document.createElement(eltype);
+  for( var i in props ) {
+    if( props.hasOwnProperty(i) ) {
+      elem.setAttribute(i,props[i]);
+    }
+  }
+  if( contents ) {
+    elem.innerHTML = contents;
+  }
+  return elem;
+}
+
+var orange, fails = [], doneonce = false;
+window.onload = function() {
+  orange = document.getElementsByTagName('div')[0];
+
+  orange.appendChild( makeEl('div',{itemprop:'foo'},'test') );
+
+  orange.ondragstart = function(e) {
+    e.dataTransfer.addElement(document.getElementById('side1'));
+    e.dataTransfer.addElement(document.getElementById('side2'));
+    e.dataTransfer.effectAllowed = 'copy';
+    e.dataTransfer.setData('Text', 'dummy text');
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+  };
+  orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover =
+  orange.ondrag = orange.ondragend = function(e) {
+    if( e.type == 'dragover' || e.type == 'dragenter' ) {
+      e.preventDefault();
+      e.dataTransfer.dropEffect = 'copy';
+    }
+    if( e.dataTransfer.getData('application/microdata+json') ) {
+      fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)';
+    }
+  };
+  orange.nextSibling.ondrop = function(e) {
+    var err;
+    if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) {
+      fails[fails.length] = e.type + ' ' + err;
+    }
+    if( e.type != 'drop' ) { return; }
+    if( doneonce ) { return; }
+    doneonce = true;
+    setTimeout(function () {
+      document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+      fails = [];
+    }, 200 );
+  };
+
+};
+function checkprops(md) {
+  var i;
+  if( !md ) { return 'no microdata'; }
+  md = JSON.parse(md);
+  if( !md.items ) { return 'no items'; }
+  if( md.items.length != 1 ) { return 'items.length '+md.items.length+' instead of 1'; }
+  if( !md.items[0].properties ) { return 'no properties'; }
+  if( !md.items[0].properties.foo ) { return 'no properties.foo'; }
+  if( md.items[0].properties.bar ) { return 'unexpected properties.bar'; }
+  if( md.items[0].properties.foo.length != 1 ) { return 'properties.foo length '+md.items[0].properties.foo.length+' instead of 1'; }
+  if( md.items[0].properties.foo[0] != orange.properties.namedItem('foo').getValues()[0] ) { return 'properties.foo[0] <i>'+md.items[0].properties.foo[0]+'</i> instead of <i>'+orange.properties.namedItem('foo').getValues()[0]+'</i>'; }
+  return '';
+}
+
+</script>
+
+<div draggable='true' itemscope></div><div></div><div></div>
+<h4 itemscope id="side1">xxx</h4><h4 itemprop="bar" id="side2">yyy</h4>
+
+<p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>
diff --git a/testing/web-platform/tests/html/editing/dnd/microdata/test b/testing/web-platform/tests/html/editing/dnd/microdata/test
new file mode 100644
index 0000000000..42d41d980e
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/microdata/test
@@ -0,0 +1,2 @@
+<!doctype html>
+<!-- The tests in this folder point to this file in e.g. <img src> -->
-- 
cgit v1.2.3