http – Dealing with "403 Forbidden" when fetching a subreddit RSS feed from a Go application – Stack Overflow

I’m trying to fetch a subreddit RSS feed from my Go application but I get the response code “403 Forbidden” every time and a message to contact support through email.

The weird thing is the request works if I do it directly in an HTTP client

GET https://reddit.com/r/investimentos/best/.rss?sort=new
User-Agent: MyRssClient/1.0 (Operated by BurnInNoia)

But using Go it fails with the message:

If you’re supplying an alternate User-Agent string, try changing back to default as that can sometimes result in a block.

req, _ := http.NewRequest(http.MethodGet, url, nil)
req.Header.Set("User-Agent", "MyRssClient/1.0 (Operated by BurnInNoia)")
resp, err := u.client.Do(req)

Does anyone have done it before?