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