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Code Issues Releases Wiki Activity

Fix improper detection of quotes in quoted strings

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Related issue:
- https://github.com/uBlockOrigin/uBlock-issues/issues/2586
This commit is contained in:
Raymond Hill 2023-04-07 18:10:50 -04:00
parent 521c3dcd1d
commit 66c70cf746
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GPG Key ID: 25E1490B761470C2
1 changed files with 4 additions and 5 deletions
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9
src/js/scriptlets/noscript-spoof.js
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@ -33,7 +33,7 @@
const noscripts = document.querySelectorAll('noscript');
if ( noscripts.length === 0 ) { return; }
const reMetaContent = /^\s*(\d+)\s*;\s*url=(['"]?)([^'"]+)\2/i;
const reMetaContent = /^\s*(\d+)\s*;\s*url=(?:"([^"]+)"|'([^']+)'|(.+))/i;
const reSafeURL = /^https?:\/\//;
let redirectTimer;
@ -41,15 +41,14 @@
const meta = root.querySelector('meta[http-equiv="refresh"][content]');
if ( meta === null ) { return; }
const match = reMetaContent.exec(meta.getAttribute('content'));
if ( match === null || match[3].trim() === '' ) { return; }
if ( match === null ) { return; }
const refreshURL = (match[2] || match[3] || match[4] || '').trim();
let url;
try {
url = new URL(match[3], document.baseURI);
url = new URL(refreshURL, document.baseURI);
} catch(ex) {
return;
}
if ( reSafeURL.test(url.href) === false ) { return; }
redirectTimer = setTimeout(( ) => {
location.assign(url.href);