browser_test_assert_systemprincipal_documents.js

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//"use strict"

const kTestPath = getRootDirectory(gTestPath);

const kTestURI = kTestPath + "file_assert_systemprincipal_documents.html";

add_setup(async function () {

  // We expect the assertion in function

  // CheckSystemPrincipalLoads as defined in

  // file dom/security/nsContentSecurityManager.cpp

  SimpleTest.expectAssertions(1);

  await SpecialPowers.pushPrefEnv({

    set: [

      ["security.disallow_non_local_systemprincipal_in_tests", true],

      ["security.allow_unsafe_parent_loads", true],

],

});

});

add_task(async function open_test_iframe_in_tab() {

  // This looks at the iframe (load type SUBDOCUMENT)

  await BrowserTestUtils.withNewTab(

    { gBrowser, url: kTestURI },

    async browser => {

      await SpecialPowers.spawn(browser, [], async function () {

        let outerPrincipal = content.document.nodePrincipal;

ok(

          outerPrincipal.isSystemPrincipal,

          "Sanity: Using SystemPrincipal for test file on chrome://"

);

        const iframeDoc =

          content.document.getElementById("testframe").contentDocument;

is(

          iframeDoc.body.innerHTML,

"",

          "iframe with systemprincipal should be empty document"

);

});

);

});