<html><head><style>body{font-family:Helvetica,Arial;font-size:13px}</style></head><body style="word-wrap:break-word;line-break:after-white-space">Hello!<div><br></div><div>There is a known issue caused by some obsolete client like old version okhttp (incomplete protocol implements).</div><div>Here is the ticket: <a href="https://trac.nginx.org/nginx/ticket/1397">https://trac.nginx.org/nginx/ticket/1397</a>.</div></body></html>