Support another HTTP Proxy methods

[ittus]

Fix #298

[dherault]

Thank you for your PR, please consider #304

[dherault]

Hi @ittus , thank you for your PR! I'll be merging it another time after I review it more thoroughly. Thank you for your patience also <3

[Pat-rice]

Could you please validate this pull request ? I applied these changes and it works for me.
Some logs are wrong but it works.

[andrewgadziksonos]

My team is also interested in this fix. Could someone take a look at it. Can confirm it works.

[ansraliant]

The code looks good to me. However, many changes have been introduced since 2017. Could you rebase the master branch and test if it stills works?
Thank you, and sorry for the delay, just now I have some time to start reviewing stuff haha.

[ittus]

@ansraliant I've rebased and checked on my personal project. Everything is working as expected.

[ansraliant]

It looks good to me. I think one of the maintainers can merge it.