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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/css/cssom/CSSStyleSheet-modify-after-removal.html
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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diff --git a/testing/web-platform/tests/css/cssom/CSSStyleSheet-modify-after-removal.html b/testing/web-platform/tests/css/cssom/CSSStyleSheet-modify-after-removal.html
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+++ b/testing/web-platform/tests/css/cssom/CSSStyleSheet-modify-after-removal.html
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+<!doctype html>
+<title>CSS Test: CSSStyleSheet modifications after removal</title>
+<link rel="help" href="https://drafts.csswg.org/cssom/#the-cssstylesheet-interface">
+<link rel="help" href="https://drafts.csswg.org/cssom/#the-cssrule-interface">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<iframe id="frm"></iframe>
+<iframe id="frm2"></iframe>
+<script>
+ test(() => {
+ frm.contentDocument.body.innerHTML = "<style>div {color:red}</style>";
+ let sheet = frm.contentDocument.querySelector("style").sheet;
+ assert_equals(sheet.cssRules.length, 1);
+ frm.remove();
+ document.body.offsetTop;
+ sheet.insertRule("span {color: green}", 0);
+ assert_equals(sheet.cssRules.length, 2);
+ }, "Modify sheet from removed iframe");
+
+ test(() => {
+ frm2.contentWindow.eval("let sheet = new CSSStyleSheet(); document.adoptedStyleSheets = [ sheet ];");
+ let sheet = frm2.contentDocument.adoptedStyleSheets[0];
+ assert_equals(sheet.cssRules.length, 0);
+ frm2.remove();
+ document.body.offsetTop;
+ sheet.insertRule("span {color: green}", 0);
+ assert_equals(sheet.cssRules.length, 1);
+ }, "Modify constructed sheet from removed iframe");
+</script>