[Feature]: Makepage.goto(<url with Content-Disposition: attachment>) detectable

[Skn0tt]

🚀 Feature Request

When calling page.goto on a URL that returns Content-Disposition: attachment, there's currently differing behaviour between browsers. I'd like it to be detectable. For example by aligning Chromium with the "Download is starting" error thrown by other browsers:

playwright/tests/library/download.spec.ts

Line 67 in d447945

expect(responseOrError.message).toContain('net::ERR_ABORTED');

This likely needs upstream Chromium changes.

Example

microsoft/playwright-mcp#328

Motivation

microsoft/playwright-mcp#328