NginxProxyManager / NginxProxyManager/nginx-proxy-manager

Setting access restriction results in 403 forbidden error

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bug
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Description

I am using Nginx Proxy Manager v2.2.3. This problem started occurring after the update to v2.2.3.

I have setup a username with password in the access list. When applying this to a proxy domain, the site becomes inaccessible with a 403 forbidden error. No login window is displayed.

Error.log
2020/04/22 13:01:10 [error] 8411#8411: *210879 access forbidden by rule, client: IP_REDACTED, server: omv.REDACTED.eu, request: "GET / HTTP/2.0", host: "omv.REDACTED.eu"

proxy_host-4.log
[22/Apr/2020:13:01:10 +0000] - - 403 - GET https omv.REDACTED.eu "/" [Client IP_REDACTED] [Length 107] [Gzip 1.36] [Sent-to 192.168.178.100] "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:75.0) Gecko/20100101 Firefox/75.0" "-"

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the issue on Nginx Proxy Manager v2.2.3 by applying a username-and-password access list to a proxy domain. Start with the reported error.log and proxy_host-4.log entries; done means the protected site shows a login prompt instead of returning HTTP 403.

Written by the indexing model from the issue text.

Assessment

Tech stack
nginx
Domain
authentication
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
45/100

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