gecko/browser/base/content/aboutTabCrashed.js

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
function parseQueryString() {
let url = document.documentURI;
let queryString = url.replace(/^about:tabcrashed?e=tabcrashed/, "");
let urlMatch = queryString.match(/u=([^&]+)/);
let url = urlMatch && urlMatch[1] ? decodeURIComponent(urlMatch[1]) : "";
let titleMatch = queryString.match(/d=([^&]*)/);
title = titleMatch && titleMatch[1] ? decodeURIComponent(titleMatch[1]) : "";
return [url, title];
}
let [url, title] = parseQueryString();
document.title = title;
document.getElementById("tryAgain").setAttribute("url", url);