tor-browser

commit f5eae79be00fc7ad216c0ff4875acbf6289f9e54
parent 237071961ffe7cce0ecf3ea00208031940311664
Author: Luke Warlow <lwarlow@igalia.com>
Date:   Thu,  9 Oct 2025 20:33:05 +0000

Bug 1992147 [wpt PR 55164] - Be explicit about TypeError's realm, a=testonly

Automatic update from web-platform-tests
Be explicit about TypeError's realm (#55164)

This addresses a cross-browser inconsistency that's unrelated to Trusted Types.
--

wpt-commits: cb34af6d0164d80781ebd1e56589138bc623c0ae
wpt-pr: 55164

Diffstat:
M
testing/web-platform/tests/trusted-types/Element-setAttribute-respects-Elements-node-documents-globals-CSP-after-adoption-from-non-TT-realm.html
 | 
12
++++++++++--

1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/testing/web-platform/tests/trusted-types/Element-setAttribute-respects-Elements-node-documents-globals-CSP-after-adoption-from-non-TT-realm.html b/testing/web-platform/tests/trusted-types/Element-setAttribute-respects-Elements-node-documents-globals-CSP-after-adoption-from-non-TT-realm.html
@@ -25,6 +25,7 @@
     <script>
       const passThroughPolicy = trustedTypes.createPolicy("passThrough", {
         createHTML: (s) => s,
+        createScript: (s) => s,
       });
 
       function runTest(aTestElement) {
@@ -111,10 +112,17 @@
                 // invokes <https://www.w3.org/TR/trusted-types/#validate-attribute-mutation>.
                 // The latter should throw when executing step 5.
 
-                assert_throws_js(TypeError, () => {
+                // There are cross-browser differences about which realm a node returned
+                // by Document.adoptNode belongs to. Here, we expect that Trusted Types will
+                // throw a exception from sourceElement's realm, but without
+                // taking a stance about whether this should be the window's or the iframe's
+                // realm.
+                // Discussion at: https://github.com/web-platform-tests/wpt/issues/45405
+                const expectedTypeError = new sourceElement.constructor.constructor(passThroughPolicy.createScript("return TypeError"))();
+                assert_throws_js(expectedTypeError, () => {
                   sourceElement.setAttributeNode(sourceAttr);
                 });
-                assert_throws_js(TypeError, () => {
+                assert_throws_js(expectedTypeError, () => {
                   sourceElement.setAttributeNS(
                     sourceAttr.namespaceURI,
                     sourceAttr.name,