Webhook test always shows 404-Not Found

Hi,

Whenever I try to send notification using webhook https://chat.googleapis.com/v1/ , it always shows 404. Webhook is correct and working but throws error in case of AWX. Please help.

HTTP/2 404
content-type: text/html; charset=utf-8
cache-control: no-cache, no-store, max-age=0, must-revalidate
pragma: no-cache
expires: Mon, 01 Jan 1990 00:00:00 GMT
date: Mon, 21 Sep 2020 19:28:29 GMT
content-length: 38
server: ESF
x-xss-protection: 0
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
alt-svc: h3-Q050=“:443”; ma=2592000,h3-29=“:443”; ma=2592000,h3-27=“:443”; ma=2592000,h3-T051=“:443”; ma=2592000,h3-T050=“:443”; ma=2592000,h3-Q046=“:443”; ma=2592000,h3-Q043=“:443”; ma=2592000,quic=“:443”; ma=2592000; v=“46,43”

(attachments)