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Test Info:
/* Any copyright is dedicated to the Public Domain.
// This test tests that session restore component does restore the right
// content security policy with the document. (The policy being tested
// disallows inline scripts).
add_task(async function test() {
// allow top level data: URI navigations, otherwise clicking a data: link fails
await SpecialPowers.pushPrefEnv({
set: [["security.data_uri.block_toplevel_data_uri_navigations", false]],
});
// create a tab that has a CSP
let testURL =
let tab = (gBrowser.selectedTab = BrowserTestUtils.addTab(gBrowser, testURL));
gBrowser.selectedTab = tab;
let browser = tab.linkedBrowser;
await promiseBrowserLoaded(browser);
// this is a baseline to ensure CSP is active
// attempt to inject and run a script via inline (pre-restore, allowed)
await injectInlineScript(
browser,
`document.getElementById("test_id1").value = "id1_modified";`
);
let loadedPromise = promiseBrowserLoaded(browser);
await SpecialPowers.spawn(browser, [], function () {
is(
content.document.getElementById("test_id1").value,
"id1_initial",
"CSP should block the inline script that modifies test_id"
);
content.document.getElementById("test_data_link").click();
});
await loadedPromise;
await SpecialPowers.spawn(browser, [], function () {
// eslint-disable-line
// the data: URI inherits the CSP and the inline script needs to be blocked
is(
content.document.getElementById("test_id2").value,
"id2_initial",
"CSP should block the script loaded by the clicked data URI"
);
});
// close the tab
await promiseRemoveTabAndSessionState(tab);
// open new tab and recover the state
tab = ss.undoCloseTab(window, 0);
await promiseTabRestored(tab);
browser = tab.linkedBrowser;
await SpecialPowers.spawn(browser, [], function () {
// eslint-disable-line
// the data: URI should be restored including the inherited CSP and the
// inline script should be blocked.
is(
content.document.getElementById("test_id2").value,
"id2_initial",
"CSP should block the script loaded by the clicked data URI after restore"
);
});
// clean up
gBrowser.removeTab(tab);
});
// injects an inline script element (with a text body)
function injectInlineScript(browser, scriptText) {
return SpecialPowers.spawn(browser, [scriptText], function (text) {
let scriptElt = content.document.createElement("script");
scriptElt.type = "text/javascript";
scriptElt.text = text;
content.document.body.appendChild(scriptElt);
});
}