Puppeteer ↔ WebSocket: Does ignoreHTTPSErrors Bypass Certificate Validation?

Goal

Determine whether the ignoreHTTPSErrors:true launch option in Puppeteer also suppresses SSL certificate errors for WebSocket connections initiated from a page.

Current Constraints

• Chromium’s ignoreHTTPSErrors flag is documented to affect navigation, XHR, and fetch, but its coverage of WebSocket handshakes remains unverified.
• Puppeteer exposes the flag via launch options but offers no API to adjust certificate validation per WebSocket request.
• Different Chromium revisions may treat WebSocket SSL checks differently, and the behavior might vary across OS platforms.

Unresolved Questions

1. When ignoreHTTPSErrors:true is set, does the WebSocket handshake succeed against a server presenting a self‑signed certificate?
2. If the flag does not apply to WebSockets, what mechanisms (e.g., custom DNS rules, external proxies) can reliably bypass certificate validation for WebSocket connections?
3. Are there version‑specific differences in Chromium that affect this behavior, and how can they be identified?