forked from mirrors/gecko-dev
69dfb519c2
Use 'globalThis' instead of 'this' when trying to attach a debugger to the current global to avoid subtle footguns with the varied definitions of 'this'. The debugger interface needs a true GlobalObject so this is much clearer. In particular, this is a problem in test_nativewrappers.js when the test runs in strict mode since the 'this' in the test function is no long implicitly the global. Differential Revision: https://phabricator.services.mozilla.com/D157544
53 lines
1.6 KiB
HTML
53 lines
1.6 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=837723
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When we use Debugger.Object.prototype.unsafeDereference to get a non-D.O
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reference to a content object in chrome, that reference should be via an
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xray wrapper.
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-->
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<head>
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<meta charset="utf-8">
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<title>Mozilla Bug 837723</title>
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<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css">
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</head>
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<body>
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<pre id="test">
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<script>
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"use strict";
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const {addDebuggerToGlobal} = ChromeUtils.import("resource://gre/modules/jsdebugger.jsm");
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addDebuggerToGlobal(globalThis);
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window.onload = function() {
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SimpleTest.waitForExplicitFinish();
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const iframe = document.createElement("iframe");
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iframe.src = "http://mochi.test:8888/chrome/devtools/server/tests/chrome/nonchrome_unsafeDereference.html";
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iframe.onload = function() {
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const dbg = new Debugger();
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const contentDO = dbg.addDebuggee(iframe.contentWindow);
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const xhrDesc = contentDO.getOwnPropertyDescriptor("xhr");
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isnot(xhrDesc, undefined, "xhr should be visible as property of content global");
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isnot(xhrDesc.value, undefined, "xhr should have a value");
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const xhr = xhrDesc.value.unsafeDereference();
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is(typeof xhr, "object", "we should be able to deference xhr's value's D.O");
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is(xhr.timeout, 1742, "chrome should see the xhr's 'timeout' property");
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is(xhr.expando, undefined, "chrome should not see the xhr's 'expando' property");
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SimpleTest.finish();
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};
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document.body.appendChild(iframe);
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};
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</script>
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</pre>
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</body>
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</html>
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