[BUG] webkit crashes intermittently: "file data stream has an unexpected number of bytes"

[keevie]

Context:

• Playwright Version: 1.14.0
• Operating System: Linux/docker container: mcr.microsoft.com/playwright:v1.14.0-focal
• Node.js version: [14.16.1]
• Browser: WebKit

Webkit crashes intermittently with the following stack trace -- I'm not sure how to reproduce consistently, but it doesn't seem to have anything to do with my specific tests?

browserContext.close: browserContext.close: file data stream has unexpected number of bytes
    at Object.context [as fn] (/usr/src/app/node_modules/@playwright/test/lib/test/index.js:338:19)
    at Fixture.teardown (/usr/src/app/node_modules/@playwright/test/lib/test/fixtures.js:98:7)
    at FixtureRunner.teardownScope (/usr/src/app/node_modules/@playwright/test/lib/test/fixtures.js:269:11)
    at WorkerRunner._runAfterHooks (/usr/src/app/node_modules/@playwright/test/lib/test/workerRunner.js:457:7)

[pavelfeldman]

Looks like a tracing-related regression. @dgozman: empty zip?

[keevie]

I have tracing set to retain-on-failure in my playwright.config.ts, for what it's worth.

[dgozman]

Cherry-picked to v1.14.1 in #8317.