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5694a686ee
Loading `about:cache` and selecting particular caches via the checkboxes
results in a cryptic error ("Unrecognized storage name 'null' in
about:cache URL") when updating the page. We avoid that by making sure
the storage parameter is in fact empty if it is supposed to be `null`.
43 lines
1.7 KiB
JavaScript
43 lines
1.7 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// First, parse and save the incoming arguments ("?storage=name&context=key")
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// Note: window.location.search doesn't work with nsSimpleURIs used for about:* addresses.
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var search = window.location.href.match(/^.*\?(.*)$/);
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var searchParams = new URLSearchParams(search ? search[1] : "");
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var storage = searchParams.get("storage") || "";
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var cacheContext = searchParams.get("context");
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// The context is in a format as used by the HTTP cache v2 back end
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if (cacheContext)
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var [context, isAnon, isInBrowser, appId, isPrivate] = cacheContext.match(/(a,)?(b,)?(i\d+,)?(p,)?/);
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if (appId)
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appId = appId.match(/i(\d+),/)[1];
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function $(id) { return document.getElementById(id) || {}; }
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// Initialize the context UI controls at the start according what we got in the "context=" argument
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addEventListener("DOMContentLoaded", function() {
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$("anon").checked = !!isAnon;
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$("inbrowser").checked = !!isInBrowser;
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$("appid").value = appId || "";
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$("priv").checked = !!isPrivate;
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}, false);
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// When user presses the [Update] button, we build a new context key according the UI control
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// values and navigate to a new about:cache?storage=<name>&context=<key> URL.
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function navigate() {
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context = "";
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if ($("anon").checked)
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context += "a,";
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if ($("inbrowser").checked)
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context += "b,";
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if ($("appid").value)
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context += "i" + $("appid").value + ",";
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if ($("priv").checked)
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context += "p,";
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window.location.href = "about:cache?storage=" + storage + "&context=" + context;
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}
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