Hey, I've been hit with "`Access to fetch at 'http...
# support-questions-legacyt
texoport
11/14/2022, 1:33 PMHey, I've been hit with "`Access to fetch at 'https://[backend-url]/auth/signin' from origin 'https://[frontend-url]' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled`" and I can't really seem to solve it. I'm able to sign up users but not login.
r
rp_st
11/14/2022, 1:35 PMhey @texoport
rp_st
11/14/2022, 1:35 PMdoes the OPTIONS API pass and then the POST API is made? Or the POST API is not made?
t
texoport
11/14/2022, 1:37 PMI'm actually not entirely sure; how would I check that?
r
rp_st
11/14/2022, 1:37 PMsee the browser's network tab
t
texoport
11/14/2022, 1:38 PMthere's a 502 on fetch but I don't know if that helps
r
rp_st
11/14/2022, 1:39 PMah right. So the API is failing.. are you running nginx in front of the API server?
t
texoport
11/14/2022, 1:39 PMYes, I am
r
rp_st
11/14/2022, 1:39 PMright, so you need to modify the nginx config to allow for larger header size
t
texoport
11/14/2022, 1:40 PMAh, cool
r
rp_st
11/14/2022, 1:40 PMyup
t
texoport
11/14/2022, 1:40 PMThanks, I'll attempt that rn
texoport
11/14/2022, 1:41 PMI don't see a 431 anywhere though, so is that still relevant?
r
rp_st
11/14/2022, 1:42 PMyes
t
texoport
11/14/2022, 1:43 PMI just did a curl of the request and seem to be getting this
r
rp_st
11/14/2022, 1:43 PMyup
rp_st
11/14/2022, 1:43 PMthats what nginx retiurns
rp_st
11/14/2022, 1:43 PMyou should google how to increase response header size limit
t
texoport
11/14/2022, 1:47 PMI just did that and it worked. Not what I'd have expected was the issue at all. Holy **. Thanks!
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