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feat(trace): preserve noscript when javascript is disabled (#28971)

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Closes #27504, closes #27532.
This commit is contained in:
Dmitry Gozman 2024-01-12 12:11:39 -08:00 committed by GitHub
parent 7670fd21e2
commit 48317af1cc
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 33 additions and 13 deletions
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2
packages/playwright-core/src/server/trace/recorder/snapshotter.ts
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@ -86,7 +86,7 @@ export class Snapshotter {
eventsHelper.addEventListener(this._context, BrowserContext.Events.Page, this._onPage.bind(this)),
];
const initScript = `(${frameSnapshotStreamer})("${this._snapshotStreamer}")`;
const initScript = `(${frameSnapshotStreamer})("${this._snapshotStreamer}", ${!!this._context._options.javaScriptEnabled})`;
await this._context.addInitScript(initScript);
await this._runInAllFrames(initScript);
}

5
packages/playwright-core/src/server/trace/recorder/snapshotterInjected.ts
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@ -31,7 +31,7 @@ export type SnapshotData = {
collectionTime: number,
};
export function frameSnapshotStreamer(snapshotStreamer: string) {
export function frameSnapshotStreamer(snapshotStreamer: string, removeNoScript: boolean) {
// Communication with Playwright.
if ((window as any)[snapshotStreamer])
return;
@ -81,7 +81,6 @@ export function frameSnapshotStreamer(snapshotStreamer: string) {
}
class Streamer {
private _removeNoScript = true;
private _lastSnapshotNumber = 0;
private _staleStyleSheets = new Set<CSSStyleSheet>();
private _readingStyleSheet = false; // To avoid invalidating due to our own reads.
@ -337,7 +336,7 @@ export function frameSnapshotStreamer(snapshotStreamer: string) {
if (rel === 'preload' || rel === 'prefetch')
return;
}
if (this._removeNoScript && nodeName === 'NOSCRIPT')
if (removeNoScript && nodeName === 'NOSCRIPT')
return;
if (nodeName === 'META' && (node as HTMLMetaElement).httpEquiv.toLowerCase() === 'content-security-policy')
return;

21
packages/trace-viewer/src/snapshotRenderer.ts
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@ -65,15 +65,18 @@ export class SnapshotRenderer {
}
} else if (typeof n[0] === 'string') {
// Element node.
const builder: string[] = [];
builder.push('<', n[0]);
// Note that <noscript> will not be rendered by default in the trace viewer, because
// JS is enabled. So rename it to <x-noscript>.
const nodeName = n[0] === 'NOSCRIPT' ? 'X-NOSCRIPT' : n[0];
const attrs = Object.entries(n[1] || {});
const builder: string[] = [];
builder.push('<', nodeName);
const kCurrentSrcAttribute = '__playwright_current_src__';
const isFrame = n[0] === 'IFRAME' || n[0] === 'FRAME';
const isAnchor = n[0] === 'A';
const isImg = n[0] === 'IMG';
const isFrame = nodeName === 'IFRAME' || nodeName === 'FRAME';
const isAnchor = nodeName === 'A';
const isImg = nodeName === 'IMG';
const isImgWithCurrentSrc = isImg && attrs.some(a => a[0] === kCurrentSrcAttribute);
const isSourceInsidePictureWithCurrentSrc = n[0] === 'SOURCE' && parentTag === 'PICTURE' && parentAttrs?.some(a => a[0] === kCurrentSrcAttribute);
const isSourceInsidePictureWithCurrentSrc = nodeName === 'SOURCE' && parentTag === 'PICTURE' && parentAttrs?.some(a => a[0] === kCurrentSrcAttribute);
for (const [attr, value] of attrs) {
let attrName = attr;
if (isFrame && attr.toLowerCase() === 'src') {
@ -99,9 +102,9 @@ export class SnapshotRenderer {
}
builder.push('>');
for (let i = 2; i < n.length; i++)
builder.push(visit(n[i], snapshotIndex, n[0], attrs));
if (!autoClosing.has(n[0]))
builder.push('</', n[0], '>');
builder.push(visit(n[i], snapshotIndex, nodeName, attrs));
if (!autoClosing.has(nodeName))
builder.push('</', nodeName, '>');
(n as any)._string = builder.join('');
} else {
// Why are we here? Let's not throw, just in case.

18
tests/library/trace-viewer.spec.ts
View File

@ -1121,3 +1121,21 @@ test('should highlight locator in iframe while typing', async ({ page, runAndTra
expect(Math.abs(elementBox.y - highlightBox.y)).toBeLessThan(5);
}
});
test('should preserve noscript when javascript is disabled', async ({ browser, server, showTraceViewer }) => {
const traceFile = test.info().outputPath('trace.zip');
const page = await browser.newPage({ javaScriptEnabled: false });
await page.context().tracing.start({ snapshots: true, screenshots: true, sources: true });
await page.goto(server.EMPTY_PAGE);
await page.setContent(`
<body>
<noscript>javascript is disabled!</noscript>
</body>
`);
await page.context().tracing.stop({ path: traceFile });
await page.close();
const traceViewer = await showTraceViewer([traceFile]);
const frame = await traceViewer.snapshotFrame('page.setContent');
await expect(frame.getByText('javascript is disabled!')).toBeVisible();
});