[Feature request] fetch: add user-agent header

I’ve searched forum, but could not find duplicate to upvote.

Google Domains support dynamic dns updates, but it requires User-Agent header field.

https://support.google.com/domains/answer/6147083?hl=en says (in folded section):

Note: You must set a user agent in your request as well. Web browsers will generally add this for you when testing via the above url.

It would be nice if fetch tool will send some fixed User-Agent header, or event let user specify it via parameter.

+1 for header support in “Fetch” tool.
More and more sites require “header” to be passed along with the request as a security requirement (e.g. for authorisation), and I would love to see this implemented!

+1 for this given the old clouddflare json api is “410 Gone” and their new api v4 headers be set for authentication.

+1 for user agent to use with google domains