Filter HTTP method (GET, POST...) #2117

Prerequisites

• I verified that this is not a filter issue (MUST be reported at filter issue tracker)
• This is not a support issue or a question
• I performed a cursory search of the issue tracker to avoid opening a duplicate issue
• The issue is not present after wholly disabling uBlock Origin ("uBO") in the browser
• I checked the documentation to understand that the issue I report is not a normal behavior

I tried to reproduce the issue when...

• uBO is the only extension
• uBO with default lists/settings
• using a new, unmodified browser profile

Description

Implement filtering of network requests by HTTP method.

A specific URL where the issue occurs

Steps to Reproduce

||www.example.com^$method=post

Expected behavior

Should block any request to www.example.com that uses the HTTP method POST.

Actual behavior

Does not block.

uBlock Origin version

1.42.4

Browser name and version

Operating System and version