browser_webconsole_network_requests_from_chrome.js

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/* Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/publicdomain/zero/1.0/ */

// Tests that network requests from chrome don't cause the Web Console to

// throw exceptions. See Bug 597136.

"use strict";

const TEST_URI = "http://example.com/";

add_task(async function () {

  // Start a listener on the console service.

  let good = true;

  const listener = {

    QueryInterface: ChromeUtils.generateQI(["nsIObserver"]),

    observe(subject) {

      if (

        subject instanceof Ci.nsIScriptError &&

        subject.category === "XPConnect JavaScript" &&

        subject.sourceName.includes("webconsole")

) {

        good = false;

},

};

  Services.console.registerListener(listener);

  // trigger a lazy-load of the HUD Service

  BrowserConsoleManager;

  await sendRequestFromChrome();

ok(

    good,

    "No exception was thrown when sending a network request from a chrome window"

);

  Services.console.unregisterListener(listener);

});

function sendRequestFromChrome() {

  return new Promise(resolve => {

    const xhr = new XMLHttpRequest();

    xhr.addEventListener(

      "load",

      () => {

        window.setTimeout(resolve, 0);

},

      { once: true }

);

    xhr.open("GET", TEST_URI, true);

    xhr.send(null);

});