What are the ways to add headers to HTTP packets when accessing a specific address?

Question

HTTP headers

Task: to implement the transfer of certain information by the client in the headers of HTTP packets, if it accesses a specific address.
What are some ways to add client-side custom headers to all HTTP packets, and which one is easier/better?

Answer 1

Ideas come to mind:
1. Local proxy server
2. Extension for the browser (I can't vouch for this option).

Answer 2

You can use flash help.adobe.com/ru_RU/FlashPlatform/reference/actio...