HTML headers

Protocol: HTTP/1.1
Connection: Keep-Alive
Host: headers.patrickmeenan.com
Accept-Encoding: br,gzip
Accept-Language: en-US,en;q=0.5
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
User-Agent: CCBot/2.0 (https://commoncrawl.org/faq/)
Content-Length: 
Content-Type: 

fetch() with explicit priority