How to Set Up a Proxy Server in Chrome – Step-by-Step Guide? or Why Isn’t My Proxy Server in Chrome W

Proxies can be finicky. If you’re using a free one, it might’ve blacklisted those sites.

Try switching to a paid proxy or just disable the proxy server in chrome temporarily to test.

Also, tools like Fiddler or Wireshark can help diagnose if the proxy’s dropping requests. Bit advanced tho.