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Extend context loss/restoration test coverage to desynchronized canvas #59314

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Merged
chromium-wpt-export-bot merged 1 commit into from
Apr 19, 2026
Merged

Extend context loss/restoration test coverage to desynchronized canvas #59314

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8 changes: 7 additions & 1 deletion html/canvas/resources/canvas-promise-test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -144,7 +144,13 @@ function runCanvasTestsInWorker({dependencies = []} = {}) {
const dependencyScripts =
await Promise.all(allDeps.map(dep => fetch(dep).then(r => r.text())));
const canvasTests = currentScript.textContent;
const allScripts = dependencyScripts.concat([canvasTests, 'done();']);
const allScripts = [
// Forward `location.search` to the worker so that it could run the right
// test variants. `location.search` is read-only in workers, so the whole
// object has to be replaced.
`var location = {search: '${self.location.search}'};`,
].concat(dependencyScripts)
.concat([canvasTests, 'done();']);

const workerBlob = new Blob(allScripts);
const worker = new Worker(URL.createObjectURL(workerBlob));
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