65 lines
2.7 KiB
JavaScript
65 lines
2.7 KiB
JavaScript
// META: title=data URL shared worker in data URL context
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// META: script=/service-workers/service-worker/resources/test-helpers.sub.js
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const mimeType = 'application/javascript';
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// Tests creating a data URL shared worker in a data URL iframe.
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promise_test(async t => {
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const nestedWorkerScriptURL =
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new URL('/workers/support/post-message-on-load-worker.js', location.href);
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// This code will be executed in a data URL iframe. The iframe tries to create
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// a shared worker from |nestedWorkerScriptURL|, but that should result in a
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// failure. This is because the data URL iframe has an opaque origin, and
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// script fetch is handled as a cross-origin request.
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const frameCode = `
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<script>
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try {
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const worker = new SharedWorker('${nestedWorkerScriptURL}');
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worker.port.onmessage = e => {
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window.parent.postMessage(
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'SharedWorker construction unexpectedly succeeded', '*');
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};
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worker.onerror = e => window.parent.postMessage('PASS', '*');
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} catch (e) {
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// Cross-origin request should asynchronously fail during worker script
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// fetch because its request mode is 'same-origin'.
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window.parent.postMessage(
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'SharedWorker construction unexpectedly synchronously failed', '*');
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}
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</script>
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`;
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const p = new Promise(r => window.onmessage = e => r(e.data));
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const frame = await with_iframe(`data:text/html;base64,${btoa(frameCode)}`);
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const result = await p;
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assert_equals(result, 'PASS');
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}, 'Create a shared worker in a data url frame');
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// Tests creating a data URL shared worker in a data URL iframe.
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promise_test(async t => {
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const workerCode = `onconnect = e => e.ports[0].postMessage("PASS");`;
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// This code will be executed in a data URL iframe. The iframe tries to create
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// a data URL shared worker. Fetching a data URL from the data URL shared
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// worker is allowed, so the worker construction should succeed. The worker
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// posts the result to the parent frame.
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const frameCode = `
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<script>
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try {
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const worker = new SharedWorker('data:${mimeType},${workerCode};');
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worker.port.onmessage = e => window.parent.postMessage(e.data, '*');
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worker.onerror = e => {
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window.parent.postMessage('FAIL: ' + e.message, '*');
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};
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} catch (e) {
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window.parent.postMessage(
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'SharedWorker construction unexpectedly synchronously failed', '*');
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}
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</script>
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`;
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const p = new Promise(r => window.onmessage = e => r(e.data));
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const frame = await with_iframe(`data:text/html;base64,${btoa(frameCode)}`);
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const result = await p;
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assert_equals(result, 'PASS');
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}, 'Create a data url shared worker in a data url frame');
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