1 files changed, 997 insertions, 0 deletions
diff --git a/testing/web-platform/tests/fetch/metadata/generated/element-picture.https.sub.html b/testing/web-platform/tests/fetch/metadata/generated/element-picture.https.sub.html
new file mode 100644
index 0000000000..ba6636a019
--- /dev/null
+++ b/testing/web-platform/tests/fetch/metadata/generated/element-picture.https.sub.html
@@ -0,0 +1,997 @@
+<!DOCTYPE html>
+<!--
+This test was procedurally generated. Please do not modify it directly.
+Sources:
+- fetch/metadata/tools/fetch-metadata.conf.yml
+- fetch/metadata/tools/templates/element-picture.sub.html
+-->
+<html lang="en">
+  <meta charset="utf-8">
+  <title>HTTP headers on request for HTML "picture" element source</title>
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <script src="/fetch/metadata/resources/helper.sub.js"></script>
+  <body>
+  <script>
+  'use strict';
+
+  function induceRequest(url, sourceEl, sourceAttr, attributes) {
+    const picture = document.createElement('picture');
+    const els = {
+      img: document.createElement('img'),
+      source: document.createElement('source')
+    };
+    picture.appendChild(els.source);
+    picture.appendChild(els.img);
+    document.body.appendChild(picture);
+
+    for (const [ name, value ] of Object.entries(attributes)) {
+      els.img.setAttribute(name, value);
+    }
+
+    return new Promise((resolve) => {
+        els[sourceEl].setAttribute(sourceAttr, url);
+        els.img.onload = els.img.onerror = resolve;
+      });
+  }
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-origin']);
+        });
+  }, 'sec-fetch-site - img[src] - Same origin, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-origin']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Same origin, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-origin']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Same origin, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsCrossSite']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[src] - Cross-site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsCrossSite']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Cross-site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsCrossSite']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Cross-site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsSameSite']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - img[src] - Same site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsSameSite']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Same site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsSameSite']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Same site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsCrossSite', 'httpsOrigin']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[src] - Same-Origin -> Cross-Site -> Same-Origin redirect, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsCrossSite', 'httpsOrigin']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Same-Origin -> Cross-Site -> Same-Origin redirect, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsCrossSite', 'httpsOrigin']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Same-Origin -> Cross-Site -> Same-Origin redirect, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsSameSite', 'httpsOrigin']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - img[src] - Same-Origin -> Same-Site -> Same-Origin redirect, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsSameSite', 'httpsOrigin']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Same-Origin -> Same-Site -> Same-Origin redirect, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsSameSite', 'httpsOrigin']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Same-Origin -> Same-Site -> Same-Origin redirect, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsCrossSite', 'httpsOrigin']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[src] - Cross-Site -> Same Origin, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsCrossSite', 'httpsOrigin']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Cross-Site -> Same Origin, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsCrossSite', 'httpsOrigin']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Cross-Site -> Same Origin, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsCrossSite', 'httpsSameSite']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[src] - Cross-Site -> Same-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsCrossSite', 'httpsSameSite']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Cross-Site -> Same-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsCrossSite', 'httpsSameSite']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Cross-Site -> Same-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsCrossSite', 'httpsCrossSite']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[src] - Cross-Site -> Cross-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsCrossSite', 'httpsCrossSite']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Cross-Site -> Cross-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsCrossSite', 'httpsCrossSite']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Cross-Site -> Cross-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsOrigin']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-origin']);
+        });
+  }, 'sec-fetch-site - img[src] - Same-Origin -> Same Origin, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsOrigin']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-origin']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Same-Origin -> Same Origin, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsOrigin']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-origin']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Same-Origin -> Same Origin, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsSameSite']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - img[src] - Same-Origin -> Same-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsSameSite']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Same-Origin -> Same-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsSameSite']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Same-Origin -> Same-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsCrossSite']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[src] - Same-Origin -> Cross-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsCrossSite']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Same-Origin -> Cross-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsOrigin', 'httpsCrossSite']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Same-Origin -> Cross-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsSameSite', 'httpsOrigin']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - img[src] - Same-Site -> Same Origin, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsSameSite', 'httpsOrigin']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Same-Site -> Same Origin, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsSameSite', 'httpsOrigin']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Same-Site -> Same Origin, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsSameSite', 'httpsSameSite']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - img[src] - Same-Site -> Same-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsSameSite', 'httpsSameSite']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Same-Site -> Same-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsSameSite', 'httpsSameSite']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['same-site']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Same-Site -> Same-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsSameSite', 'httpsCrossSite']),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[src] - Same-Site -> Cross-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsSameSite', 'httpsCrossSite']),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - img[srcset] - Same-Site -> Cross-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, ['httpsSameSite', 'httpsCrossSite']),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-site');
+          assert_array_equals(headers['sec-fetch-site'], ['cross-site']);
+        });
+  }, 'sec-fetch-site - source[srcset] - Same-Site -> Cross-Site, no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-mode');
+          assert_array_equals(headers['sec-fetch-mode'], ['no-cors']);
+        });
+  }, 'sec-fetch-mode - img[src] - no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-mode');
+          assert_array_equals(headers['sec-fetch-mode'], ['no-cors']);
+        });
+  }, 'sec-fetch-mode - img[srcset] - no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-mode');
+          assert_array_equals(headers['sec-fetch-mode'], ['no-cors']);
+        });
+  }, 'sec-fetch-mode - source[srcset] - no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'img',
+        'src',
+        {"crossorigin": ""}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-mode');
+          assert_array_equals(headers['sec-fetch-mode'], ['cors']);
+        });
+  }, 'sec-fetch-mode - img[src] - attributes: crossorigin');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'img',
+        'srcset',
+        {"crossorigin": ""}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-mode');
+          assert_array_equals(headers['sec-fetch-mode'], ['cors']);
+        });
+  }, 'sec-fetch-mode - img[srcset] - attributes: crossorigin');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'source',
+        'srcset',
+        {"crossorigin": ""}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-mode');
+          assert_array_equals(headers['sec-fetch-mode'], ['cors']);
+        });
+  }, 'sec-fetch-mode - source[srcset] - attributes: crossorigin');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'img',
+        'src',
+        {"crossorigin": "anonymous"}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-mode');
+          assert_array_equals(headers['sec-fetch-mode'], ['cors']);
+        });
+  }, 'sec-fetch-mode - img[src] - attributes: crossorigin=anonymous');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'img',
+        'srcset',
+        {"crossorigin": "anonymous"}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-mode');
+          assert_array_equals(headers['sec-fetch-mode'], ['cors']);
+        });
+  }, 'sec-fetch-mode - img[srcset] - attributes: crossorigin=anonymous');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'source',
+        'srcset',
+        {"crossorigin": "anonymous"}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-mode');
+          assert_array_equals(headers['sec-fetch-mode'], ['cors']);
+        });
+  }, 'sec-fetch-mode - source[srcset] - attributes: crossorigin=anonymous');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'img',
+        'src',
+        {"crossorigin": "use-credentials"}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-mode');
+          assert_array_equals(headers['sec-fetch-mode'], ['cors']);
+        });
+  }, 'sec-fetch-mode - img[src] - attributes: crossorigin=use-credentials');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'img',
+        'srcset',
+        {"crossorigin": "use-credentials"}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-mode');
+          assert_array_equals(headers['sec-fetch-mode'], ['cors']);
+        });
+  }, 'sec-fetch-mode - img[srcset] - attributes: crossorigin=use-credentials');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'source',
+        'srcset',
+        {"crossorigin": "use-credentials"}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-mode');
+          assert_array_equals(headers['sec-fetch-mode'], ['cors']);
+        });
+  }, 'sec-fetch-mode - source[srcset] - attributes: crossorigin=use-credentials');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-dest');
+          assert_array_equals(headers['sec-fetch-dest'], ['image']);
+        });
+  }, 'sec-fetch-dest - img[src] - no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-dest');
+          assert_array_equals(headers['sec-fetch-dest'], ['image']);
+        });
+  }, 'sec-fetch-dest - img[srcset] - no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_own_property(headers, 'sec-fetch-dest');
+          assert_array_equals(headers['sec-fetch-dest'], ['image']);
+        });
+  }, 'sec-fetch-dest - source[srcset] - no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'img',
+        'src',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_not_own_property(headers, 'sec-fetch-user');
+        });
+  }, 'sec-fetch-user - img[src] - no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'img',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_not_own_property(headers, 'sec-fetch-user');
+        });
+  }, 'sec-fetch-user - img[srcset] - no attributes');
+
+  promise_test(() => {
+    const key = '{{uuid()}}';
+
+    return induceRequest(
+        makeRequestURL(key, []),
+        'source',
+        'srcset',
+        {}
+      )
+      .then(() => retrieve(key))
+      .then((headers) => {
+          assert_not_own_property(headers, 'sec-fetch-user');
+        });
+  }, 'sec-fetch-user - source[srcset] - no attributes');
+  </script>
+  </body>
+</html>
+