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##Frequently Asked Questions

Why does my browser get in to a redirect loop?

It may be that you are using the (default) cookie-only session storage of lua-resty-session library that lua-resty-openidc depends on and the size of the cookie becomes too large, typically >4096 bytes. See: https://github.com/pingidentity/lua-resty-openidc/issues/32.

Solution: either make the size of the session cookie smaller by having the Provider include less information in the session/claims, or revert to server side session storage such as memcache, see: https://github.com/bungle/lua-resty-session#pluggable-storage-adapters.

Update: since version 2.15 lua-resty-session has support for "chunked" session cookies, https://github.com/bungle/lua-resty-session/releases/tag/v2.15, so upgrading to that version would also mitigate this issue.