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fix(playwright): skip unloaded iframes #1060

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merged 2 commits into from
May 13, 2024
Merged

fix(playwright): skip unloaded iframes #1060

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b57bfd0
fix(playwright): skip unloaded iframes
straker May 13, 2024
41032a0
throw only in run partial
straker May 13, 2024
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24 changes: 12 additions & 12 deletions package-lock.json
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2 changes: 1 addition & 1 deletion packages/playwright/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,7 @@
"axe-core": "~4.9.0"
},
"devDependencies": {
"@playwright/test": "^1.34.3",
"@playwright/test": "^1.44.0",
"@types/chai": "^4.3.3",
"@types/express": "^4.17.14",
"@types/mocha": "^10.0.0",
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22 changes: 18 additions & 4 deletions packages/playwright/src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -183,10 +183,24 @@ export default class AxeBuilder {
* @returns Promise<void>
*/

private async inject(frames: Frame[]): Promise<void> {
private async inject(frames: Frame[], shouldThrow?: boolean): Promise<void> {
for (const iframe of frames) {
await iframe.evaluate(await this.script());
await iframe.evaluate(await this.axeConfigure());
const race = new Promise((_, reject) => {
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@straker straker May 13, 2024 •
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The newer versions of Playwright with the update to Chrome, combined with our changes to the lazy loaded frame test now make it so Playwright is not loading the lazy loaded iframe when it is outside the viewport.

Playwright does not have a pageload timeout like all the other drivers, and neither does the evaluate function have a timeout option. So this was the only other choice to have the lazy loaded iframe not hang indefinitely.

setTimeout(() => {
reject(new Error('Script Timeout'));
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}, 1000);
});
const evaluate = iframe.evaluate(this.script());

try {
await Promise.race([evaluate, race]);
await iframe.evaluate(await this.axeConfigure());
} catch (err) {
// in legacy mode we don't want to throw the error we just want to skip injecting into the frame
if (shouldThrow) {
throw err;
}
}
}
}

Expand Down Expand Up @@ -256,7 +270,7 @@ export default class AxeBuilder {
iframeHandle.asElement() as ElementHandle<Element>;
const childFrame = await iframeElement.contentFrame();
if (childFrame) {
await this.inject([childFrame]);
await this.inject([childFrame], true);
childResults = await this.runPartialRecursive(
childFrame,
frameContext
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7 changes: 6 additions & 1 deletion packages/playwright/test/axe-playwright.spec.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -447,7 +447,12 @@ describe('@axe-core/playwright', () => {
.analyze();

assert.equal(res?.status(), 200);
assert.lengthOf(results.incomplete, 0);
assert.equal(results.incomplete[0].id, 'frame-tested');
assert.lengthOf(results.incomplete[0].nodes, 1);
assert.deepEqual(results.incomplete[0].nodes[0].target, [
'#ifr-lazy',
'#lazy-iframe'
]);
assert.equal(results.violations[0].id, 'label');
assert.lengthOf(results.violations[0].nodes, 1);
assert.deepEqual(results.violations[0].nodes[0].target, [
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