Attaching images to issues causing random 'Server responded with 0 code'
Summary
When attempting to drag and drop a document or clicking the 'Attach a file' when commenting on an issue, I get a red 'Server responded with 0 code' where it wont work. Again, it doesn't happen all the time as it's random. This has been happening for awhile now already. I am running the latest '13.7.4-ee'. We also have a reverse proxy Haproxy in front of our Gitlab instance.
I even tried adding following suggestions from other threads to my gitlab.rb file
# external_url 'GENERATED_EXTERNAL_URL'
external_url 'https://your_externarl_url'
nginx['listen_port'] = 81
nginx['listen_https'] = false
nginx['proxy_set_headers'] = {
"X-Forwarded-Proto" => "https",
"X-Forwarded-Ssl" => "on"
}
nginx['http2_enabled'] = false