ERR_BLOCKED_BY_RESPONSE
ERR_BLOCKED_BY_RESPONSE Error
What This Error Means
The ERR_BLOCKED_BY_RESPONSE error occurs when the browser blocks a request because the server's response headers (like X-Frame-Options) forbid it. This often happens when trying to embed a site in an iframe.
Common Causes
- Embedding a site that has `X-Frame-Options: DENY` or `SAMEORIGIN`.
- Cross-Origin Read Blocking (CORB) security checks.
- Content Security Policy (CSP) violations.
How to Fix It (For Users)
- 1 Open the link in a new tab instead of viewing it embedded.
- 2 Disable extensions that might be modifying headers (not recommended).
For Site Owners / Developers
- Adjust `X-Frame-Options` header if you want to allow embedding.
- Configure Content Security Policy (CSP) to whitelist specific domains.
- Check CORS headers for API requests.
When It Is NOT Your Fault
If the site owner intentionally blocks embedding.
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