Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

45 files changed, 217 insertions, 0 deletions

diff --git a/testing/web-platform/meta/html/editing/dnd/__dir__.ini b/testing/web-platform/meta/html/editing/dnd/__dir__.ini
new file mode 100644
index 0000000000..daf68383df
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/__dir__.ini
@@ -0,0 +1 @@
+leak-threshold: [default:51200]
diff --git a/testing/web-platform/meta/html/editing/dnd/canvas/001.html.ini b/testing/web-platform/meta/html/editing/dnd/canvas/001.html.ini
new file mode 100644
index 0000000000..7c9164f6c6
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/canvas/001.html.ini
@@ -0,0 +1,4 @@
+[001.html]
+  expected: TIMEOUT
+  [Canvas drag and drop carrying image as dataURL]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/canvas/002.html.ini b/testing/web-platform/meta/html/editing/dnd/canvas/002.html.ini
new file mode 100644
index 0000000000..d7eed9a033
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/canvas/002.html.ini
@@ -0,0 +1,4 @@
+[002.html]
+  expected: TIMEOUT
+  [Drag and drop: dropping block element onto canvas]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/canvas/003.html.ini b/testing/web-platform/meta/html/editing/dnd/canvas/003.html.ini
new file mode 100644
index 0000000000..89f90c9999
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/canvas/003.html.ini
@@ -0,0 +1,4 @@
+[003.html]
+  expected: TIMEOUT
+  [Drag and drop from iframe: dropping block element onto canvas]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/canvas/005.html.ini b/testing/web-platform/meta/html/editing/dnd/canvas/005.html.ini
new file mode 100644
index 0000000000..c83f846a13
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/canvas/005.html.ini
@@ -0,0 +1,4 @@
+[005.html]
+  expected: TIMEOUT
+  [Drag and drop to iframe: dropping block element onto canvas]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/canvas/007.html.ini b/testing/web-platform/meta/html/editing/dnd/canvas/007.html.ini
new file mode 100644
index 0000000000..b86f3e8e3d
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/canvas/007.html.ini
@@ -0,0 +1,4 @@
+[007.html]
+  expected: TIMEOUT
+  [Drag and drop between iframes: dropping block element onto canvas]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/datastore/datatransfer-constructor-001.html.ini b/testing/web-platform/meta/html/editing/dnd/datastore/datatransfer-constructor-001.html.ini
new file mode 100644
index 0000000000..ebc066397d
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/datastore/datatransfer-constructor-001.html.ini
@@ -0,0 +1,3 @@
+[datatransfer-constructor-001.html]
+  expected:
+    if (os == "android") and fission: [OK, TIMEOUT]
diff --git a/testing/web-platform/meta/html/editing/dnd/datastore/datatransferitemlist-remove.html.ini b/testing/web-platform/meta/html/editing/dnd/datastore/datatransferitemlist-remove.html.ini
new file mode 100644
index 0000000000..9ef0801ee8
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/datastore/datatransferitemlist-remove.html.ini
@@ -0,0 +1,3 @@
+[datatransferitemlist-remove.html]
+  expected:
+    if (os == "android") and fission: [TIMEOUT, OK]
diff --git a/testing/web-platform/meta/html/editing/dnd/dom/events.html.ini b/testing/web-platform/meta/html/editing/dnd/dom/events.html.ini
new file mode 100644
index 0000000000..1e16d3cd6b
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/dom/events.html.ini
@@ -0,0 +1,3 @@
+[events.html]
+  expected:
+    if (os == "android") and fission: [OK, TIMEOUT]
diff --git a/testing/web-platform/meta/html/editing/dnd/dom/specials.html.ini b/testing/web-platform/meta/html/editing/dnd/dom/specials.html.ini
new file mode 100644
index 0000000000..74d5695d46
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/dom/specials.html.ini
@@ -0,0 +1,3 @@
+[specials.html]
+  expected:
+    if (os == "android") and fission: [OK, TIMEOUT]
diff --git a/testing/web-platform/meta/html/editing/dnd/historical.html.ini b/testing/web-platform/meta/html/editing/dnd/historical.html.ini
new file mode 100644
index 0000000000..9dff1feefa
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/historical.html.ini
@@ -0,0 +1,2 @@
+[historical.html]
+  prefs: [dom.event.dragexit.enabled:false]
diff --git a/testing/web-platform/meta/html/editing/dnd/images/001.html.ini b/testing/web-platform/meta/html/editing/dnd/images/001.html.ini
new file mode 100644
index 0000000000..2bf8e8af7e
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/001.html.ini
@@ -0,0 +1,4 @@
+[001.html]
+  expected: TIMEOUT
+  [Image drag and drop]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/002.html.ini b/testing/web-platform/meta/html/editing/dnd/images/002.html.ini
new file mode 100644
index 0000000000..19df5a1b09
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/002.html.ini
@@ -0,0 +1,4 @@
+[002.html]
+  expected: TIMEOUT
+  [dataURL image drag and drop]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/004.html.ini b/testing/web-platform/meta/html/editing/dnd/images/004.html.ini
new file mode 100644
index 0000000000..7c2429cc23
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/004.html.ini
@@ -0,0 +1,4 @@
+[004.html]
+  expected: TIMEOUT
+  [Object with image drag and drop]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/005.html.ini b/testing/web-platform/meta/html/editing/dnd/images/005.html.ini
new file mode 100644
index 0000000000..b3882530c8
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/005.html.ini
@@ -0,0 +1,4 @@
+[005.html]
+  expected: TIMEOUT
+  [JPG image drag and drop]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/006.html.ini b/testing/web-platform/meta/html/editing/dnd/images/006.html.ini
new file mode 100644
index 0000000000..6630e57e50
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/006.html.ini
@@ -0,0 +1,4 @@
+[006.html]
+  expected: TIMEOUT
+  [dataURL image drag and drop from iframe]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/007.html.ini b/testing/web-platform/meta/html/editing/dnd/images/007.html.ini
new file mode 100644
index 0000000000..dbccd2ef07
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/007.html.ini
@@ -0,0 +1,4 @@
+[007.html]
+  expected: TIMEOUT
+  [dataURL image drag and drop to iframe]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/008.html.ini b/testing/web-platform/meta/html/editing/dnd/images/008.html.ini
new file mode 100644
index 0000000000..283e58789f
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/008.html.ini
@@ -0,0 +1,4 @@
+[008.html]
+  expected: TIMEOUT
+  [dataURL image drag and drop between iframes]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/009.html.ini b/testing/web-platform/meta/html/editing/dnd/images/009.html.ini
new file mode 100644
index 0000000000..219be3013e
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/009.html.ini
@@ -0,0 +1,4 @@
+[009.html]
+  expected: TIMEOUT
+  [Image drag and drop from iframe]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/010.html.ini b/testing/web-platform/meta/html/editing/dnd/images/010.html.ini
new file mode 100644
index 0000000000..e371bad4ae
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/010.html.ini
@@ -0,0 +1,4 @@
+[010.html]
+  expected: TIMEOUT
+  [Image drag and drop to iframe]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/015.html.ini b/testing/web-platform/meta/html/editing/dnd/images/015.html.ini
new file mode 100644
index 0000000000..e342c856ef
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/015.html.ini
@@ -0,0 +1,4 @@
+[015.html]
+  expected: TIMEOUT
+  [Dropping image on horizontal scrollbar of a scrollable block element]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/016.html.ini b/testing/web-platform/meta/html/editing/dnd/images/016.html.ini
new file mode 100644
index 0000000000..cf4feb288e
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/016.html.ini
@@ -0,0 +1,4 @@
+[016.html]
+  expected: TIMEOUT
+  [Dropping image on vertical scrollbar of a scrollable block element]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/017.html.ini b/testing/web-platform/meta/html/editing/dnd/images/017.html.ini
new file mode 100644
index 0000000000..b5c02a2ce3
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/017.html.ini
@@ -0,0 +1,7 @@
+[017.html]
+  expected:
+    if (os == "android") and fission: [ERROR, TIMEOUT]
+    if (os == "android") and not fission: ERROR
+    TIMEOUT
+  [Dropping image on horizontal page scrollbar]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/018.html.ini b/testing/web-platform/meta/html/editing/dnd/images/018.html.ini
new file mode 100644
index 0000000000..edb22539af
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/018.html.ini
@@ -0,0 +1,4 @@
+[018.html]
+  expected: TIMEOUT
+  [Dropping image on vertical page scrollbar]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/021.html.ini b/testing/web-platform/meta/html/editing/dnd/images/021.html.ini
new file mode 100644
index 0000000000..ff2a34bce7
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/021.html.ini
@@ -0,0 +1,4 @@
+[021.html]
+  expected: TIMEOUT
+  [Dropping image on horizontal iframe scrollbar]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/023.html.ini b/testing/web-platform/meta/html/editing/dnd/images/023.html.ini
new file mode 100644
index 0000000000..6016cce2a6
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/023.html.ini
@@ -0,0 +1,4 @@
+[023.html]
+  expected: TIMEOUT
+  [Dropping image on horizontal object scrollbar]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/images/024.html.ini b/testing/web-platform/meta/html/editing/dnd/images/024.html.ini
new file mode 100644
index 0000000000..4e5c8d1d31
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/images/024.html.ini
@@ -0,0 +1,4 @@
+[024.html]
+  expected: TIMEOUT
+  [Dropping image on vertical object scrollbar]
+    expected: TIMEOUT
diff --git a/testing/web-platform/meta/html/editing/dnd/synthetic/001.html.ini b/testing/web-platform/meta/html/editing/dnd/synthetic/001.html.ini
new file mode 100644
index 0000000000..520875c6bd
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/synthetic/001.html.ini
@@ -0,0 +1,5 @@
+[001.html]
+  expected:
+    if (os == "android") and fission: [OK, TIMEOUT]
+  [DragEvent should have all of the inherited init*Event methods]
+    expected: FAIL
diff --git a/testing/web-platform/meta/html/editing/dnd/target-origin/202.html.ini b/testing/web-platform/meta/html/editing/dnd/target-origin/202.html.ini
new file mode 100644
index 0000000000..889f464d5d
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/target-origin/202.html.ini
@@ -0,0 +1,4 @@
+[202.html]
+  [allowTargetOrigin with fake dataTransfer should block events]
+    expected: FAIL
+
diff --git a/testing/web-platform/meta/html/editing/dnd/the-draggable-attribute/draggable-enumerated-ascii-case-insensitive.html.ini b/testing/web-platform/meta/html/editing/dnd/the-draggable-attribute/draggable-enumerated-ascii-case-insensitive.html.ini
new file mode 100644
index 0000000000..48a4f7576b
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/the-draggable-attribute/draggable-enumerated-ascii-case-insensitive.html.ini
@@ -0,0 +1,3 @@
+[draggable-enumerated-ascii-case-insensitive.html]
+  expected:
+    if (os == "android") and fission: [OK, TIMEOUT]
diff --git a/testing/web-platform/meta/html/editing/dnd/the-dropzone-attribute/dropzone_attribute.html.ini b/testing/web-platform/meta/html/editing/dnd/the-dropzone-attribute/dropzone_attribute.html.ini
new file mode 100644
index 0000000000..66a6ad802d
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/dnd/the-dropzone-attribute/dropzone_attribute.html.ini
@@ -0,0 +1,8 @@
+[dropzone_attribute.html]
+  expected:
+    if (os == "android") and fission: [OK, TIMEOUT]
+  [div.dropzone should not be null]
+    expected: FAIL
+
+  [div dropzone idl attribute must reflect the content attribute of the same name]
+    expected: FAIL
diff --git a/testing/web-platform/meta/html/editing/editing-0/__dir__.ini b/testing/web-platform/meta/html/editing/editing-0/__dir__.ini
new file mode 100644
index 0000000000..2e2a85383b
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/editing-0/__dir__.ini
@@ -0,0 +1 @@
+leak-threshold: [gpu:51200]
diff --git a/testing/web-platform/meta/html/editing/editing-0/autocapitalization/autocapitalize.html.ini b/testing/web-platform/meta/html/editing/editing-0/autocapitalization/autocapitalize.html.ini
new file mode 100644
index 0000000000..e023bec13c
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/editing-0/autocapitalization/autocapitalize.html.ini
@@ -0,0 +1,2 @@
+prefs: [dom.forms.autocapitalize:true]
+[autocapitalize.html]
diff --git a/testing/web-platform/meta/html/editing/editing-0/contenteditable/contenteditable-enumerated-ascii-case-insensitive.html.ini b/testing/web-platform/meta/html/editing/editing-0/contenteditable/contenteditable-enumerated-ascii-case-insensitive.html.ini
new file mode 100644
index 0000000000..44304811d1
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/editing-0/contenteditable/contenteditable-enumerated-ascii-case-insensitive.html.ini
@@ -0,0 +1,14 @@
+[contenteditable-enumerated-ascii-case-insensitive.html]
+  expected:
+    if (os == "android") and fission: [OK, TIMEOUT]
+  [IDL attribute getter for attribute value "plaintext-only"]
+    expected: FAIL
+
+  [IDL attribute setter for value "plaintext-only"]
+    expected: FAIL
+
+  [IDL attribute getter for attribute value "PLAINTEXT-ONLY"]
+    expected: FAIL
+
+  [IDL attribute setter for value "PLAINTEXT-ONLY"]
+    expected: FAIL
diff --git a/testing/web-platform/meta/html/editing/editing-0/contenteditable/selection-in-contentEditable-at-turning-designMode-on-off.tentative.html.ini b/testing/web-platform/meta/html/editing/editing-0/contenteditable/selection-in-contentEditable-at-turning-designMode-on-off.tentative.html.ini
new file mode 100644
index 0000000000..b395d7e111
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/editing-0/contenteditable/selection-in-contentEditable-at-turning-designMode-on-off.tentative.html.ini
@@ -0,0 +1,3 @@
+[selection-in-contentEditable-at-turning-designMode-on-off.tentative.html]
+  expected:
+    if (os == "android") and fission: [OK, TIMEOUT]
diff --git a/testing/web-platform/meta/html/editing/editing-0/contenteditable/user-interaction-editing-contenteditable.html.ini b/testing/web-platform/meta/html/editing/editing-0/contenteditable/user-interaction-editing-contenteditable.html.ini
new file mode 100644
index 0000000000..d7e9cd7426
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/editing-0/contenteditable/user-interaction-editing-contenteditable.html.ini
@@ -0,0 +1,8 @@
+[user-interaction-editing-contenteditable.html]
+  expected:
+    if (os == "android") and fission: [TIMEOUT, OK]
+  [contentEditable=plaintext-only attribute]
+    expected: FAIL
+
+  [set parent element contentEditable = "plaintext-only"]
+    expected: FAIL
diff --git a/testing/web-platform/meta/html/editing/editing-0/making-entire-documents-editable-the-designmode-idl-attribute/user-interaction-editing-designMode-svg.svg.ini b/testing/web-platform/meta/html/editing/editing-0/making-entire-documents-editable-the-designmode-idl-attribute/user-interaction-editing-designMode-svg.svg.ini
new file mode 100644
index 0000000000..7e0a79d7a6
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/editing-0/making-entire-documents-editable-the-designmode-idl-attribute/user-interaction-editing-designMode-svg.svg.ini
@@ -0,0 +1,3 @@
+[user-interaction-editing-designMode-svg.svg]
+  expected:
+    if (os == "android") and fission: [OK, TIMEOUT]
diff --git a/testing/web-platform/meta/html/editing/editing-0/making-entire-documents-editable-the-designmode-idl-attribute/user-interaction-editing-designMode.html.ini b/testing/web-platform/meta/html/editing/editing-0/making-entire-documents-editable-the-designmode-idl-attribute/user-interaction-editing-designMode.html.ini
new file mode 100644
index 0000000000..526af6093b
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/editing-0/making-entire-documents-editable-the-designmode-idl-attribute/user-interaction-editing-designMode.html.ini
@@ -0,0 +1,3 @@
+[user-interaction-editing-designMode.html]
+  expected:
+    if (os == "android") and fission: [OK, TIMEOUT]
diff --git a/testing/web-platform/meta/html/editing/editing-0/spelling-and-grammar-checking/spellcheck-enumerated-ascii-case-insensitive.html.ini b/testing/web-platform/meta/html/editing/editing-0/spelling-and-grammar-checking/spellcheck-enumerated-ascii-case-insensitive.html.ini
new file mode 100644
index 0000000000..5cd2f8bb68
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/editing-0/spelling-and-grammar-checking/spellcheck-enumerated-ascii-case-insensitive.html.ini
@@ -0,0 +1,5 @@
+[spellcheck-enumerated-ascii-case-insensitive.html]
+  expected:
+    if (os == "android") and fission: [OK, TIMEOUT]
+  [keyword false]
+    expected: FAIL
diff --git a/testing/web-platform/meta/html/editing/editing-0/spelling-and-grammar-checking/spelling-markers-009.html.ini b/testing/web-platform/meta/html/editing/editing-0/spelling-and-grammar-checking/spelling-markers-009.html.ini
new file mode 100644
index 0000000000..b349b68ccd
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/editing-0/spelling-and-grammar-checking/spelling-markers-009.html.ini
@@ -0,0 +1,5 @@
+[spelling-markers-009.html]
+  expected:
+    if os == "win": PASS
+    if os == "mac": PASS
+    FAIL
diff --git a/testing/web-platform/meta/html/editing/editing-0/spelling-and-grammar-checking/spelling-markers-010.html.ini b/testing/web-platform/meta/html/editing/editing-0/spelling-and-grammar-checking/spelling-markers-010.html.ini
new file mode 100644
index 0000000000..80a7265702
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/editing-0/spelling-and-grammar-checking/spelling-markers-010.html.ini
@@ -0,0 +1,5 @@
+[spelling-markers-010.html]
+  expected:
+    if os == "win": PASS
+    if os == "mac": PASS
+    FAIL
diff --git a/testing/web-platform/meta/html/editing/editing-0/spelling-and-grammar-checking/user-interaction-editing-spellcheck.html.ini b/testing/web-platform/meta/html/editing/editing-0/spelling-and-grammar-checking/user-interaction-editing-spellcheck.html.ini
new file mode 100644
index 0000000000..7984f53141
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/editing-0/spelling-and-grammar-checking/user-interaction-editing-spellcheck.html.ini
@@ -0,0 +1,3 @@
+[user-interaction-editing-spellcheck.html]
+  expected:
+    if (os == "android") and fission: [OK, TIMEOUT]
diff --git a/testing/web-platform/meta/html/editing/the-hidden-attribute/beforematch-element-fragment-navigation.html.ini b/testing/web-platform/meta/html/editing/the-hidden-attribute/beforematch-element-fragment-navigation.html.ini
new file mode 100644
index 0000000000..2e8cf2714a
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/the-hidden-attribute/beforematch-element-fragment-navigation.html.ini
@@ -0,0 +1,24 @@
+[beforematch-element-fragment-navigation.html]
+  [Verifies that fragment navigation reveals hidden=until-found elements.]
+    expected: FAIL
+
+  [Verifies that fragment navigation reveals all parent hidden=until-found elements.]
+    expected: FAIL
+
+  [Verifies that the beforematch event is fired synchronously and bubbles after fragment navigation.]
+    expected: FAIL
+
+  [Verifies that when a beforematch event handler moves a matching element, we scroll to its final location.]
+    expected: FAIL
+
+  [Verifies that the beforematch event is fired on the right element when there are multiple hidden=until-found elements.]
+    expected: FAIL
+
+  [Verifies that no scrolling occurs when an element selected by the fragment identifier is detached by the beforematch event handler.]
+    expected: FAIL
+
+  [No scrolling should occur when the beforematch event handler sets the target element's style to display: none.]
+    expected: FAIL
+
+  [Scrolling should still occur when beforematch sets visiblity:hidden on the target element.]
+    expected: FAIL
diff --git a/testing/web-platform/meta/html/editing/the-hidden-attribute/hidden-idl.html.ini b/testing/web-platform/meta/html/editing/the-hidden-attribute/hidden-idl.html.ini
new file mode 100644
index 0000000000..3e5a92d47b
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/the-hidden-attribute/hidden-idl.html.ini
@@ -0,0 +1,9 @@
+[hidden-idl.html]
+  [div.hidden = "until-found"]
+    expected: FAIL
+
+  [div.hidden = "UNTIL-FOUND"]
+    expected: FAIL
+
+  [div.hidden = "UnTiL-FoUnD"]
+    expected: FAIL
diff --git a/testing/web-platform/meta/html/editing/the-hidden-attribute/hidden-ua-stylesheet.html.ini b/testing/web-platform/meta/html/editing/the-hidden-attribute/hidden-ua-stylesheet.html.ini
new file mode 100644
index 0000000000..8f3820f10e
--- /dev/null
+++ b/testing/web-platform/meta/html/editing/the-hidden-attribute/hidden-ua-stylesheet.html.ini
@@ -0,0 +1,10 @@
+[hidden-ua-stylesheet.html]
+  prefs: [layout.css.content-visibility.enabled:true]
+  [div.setAttribute('hidden', 'until-found')]
+    expected: FAIL
+
+  [div.setAttribute('hidden', 'UNTIL-FOUND')]
+    expected: FAIL
+
+  [div.setAttribute('hidden', 'UnTiL-FoUnD')]
+    expected: FAIL