how to increase header size limit
the default header size limit is 8K from cloudflare side. however, our web application need larger header more than 100k due to legacy issue. Could you please help how to alter this limit? thanks.
2 Replies
You would probably need to be on enterprise in order to have a chance of that limit being increased
fwiw I think Cloudflare's limit is 16 KB (or maybe even 32 KB total?) which is generous then most
Request headers observe a total limit of 32 KB, but each header is limited to 16 KB. Under Workers Docs thoughhttps://developers.cloudflare.com/workers/platform/limits/
Headers exceeding 16 KB (typically due to too many cookies)https://developers.cloudflare.com/support/troubleshooting/cloudflare-errors/troubleshooting-cloudflare-5xx-errors/ But yea if you're above 100 KB then Enterprise would be your only hope I imagine, and even then that's not guaranteed, worth trying though