Question
If I'm using a CDN, could it be causing the 431 error?
Asked by: USER5149
54 Viewed
54 Answers
Answer (54)
Yes, CDNs often have their own header size limits, similar to reverse proxies. The client's request might be within the origin server's limits but exceed the CDN's limits. Check your CDN configuration and ensure its header size limits are appropriate for your application's needs. Consider optimizing headers before they reach the CDN.