Help how to create proxy backend modyfi http header request

<p>Hello Friend I have a question as I create a proxy that will lead to a backend already look on the internet there are good projects but not is how to modify headers http I used to be able to evade sensura in my country thank you for your help</p> <hr/>**评论：**<br/><br/>calebdoxsey: <pre><p>The product you are looking for is lantern: <a href="https://getlantern.org/" rel="nofollow">https://getlantern.org/</a>. It is written in Go and bypasses country-level firewalls by proxying traffic through CDNs.</p></pre>roveboat: <pre><p>Googling for &#39;golang http proxy&#39; results in <a href="https://github.com/elazarl/goproxy" rel="nofollow">this library</a>, which looks like it fits the bill and there&#39;s an example where the proxy adds a header too. Good luck!</p></pre>obito02: <pre><p>Thanks for responding try this project works well create me the backend to the proxy and you have a log on exa, but the problem is that I can not modify headers http direct sending to the proxy could give me a idea as capture headers pass them to string modify my taste to return them send them to the proxy etc I hope I can help is grateful it is the project thanks por your help <a href="https://github.com/dgryski/dhd" rel="nofollow">https://github.com/dgryski/dhd</a></p></pre>