HTTP proxy authentication doesn't work

[dausruddin]

To make issues more manageable, I would appreciate it if you fill out the following details as applicable:

General information

1. Android Version: 10
2. Android Vendor/Custom ROM: Crdroid
3. Device: OnePlus 5T
4. Version of the app (version number/play store version/self-built): Playstore 0.7.16

Description of the issue

I have multiple issue here.

1. This app doesn't support configuration of http-proxy with format
   http-proxy 192.168.4.1 1080 stdin basic
   which is mentioned here .
   It will give error Option http-proxy has 4 parameters, expected between 2 and 2.

2. Proxy authentication doesn't work well. I have a proxy with credentials look like this:

   Username: [email protected]
   Password: johnroe123
   

   But the app keep saying

   HTTP proxy returned: 'HTTP/1.1 407 Proxy Authentication Required'
   Proxy requires authentication
   

   I have tried replacing @ in the username with %40 (johnroe%40gmail.com) and still getting the same issue.

I'm willing to give my proxy including credentials if you want to test.

Thanks.