Greasemonkey: GM.xmlhttpRequest not sending 'Referer' header like GM_xmlhttpRequest

[mt025]

It would be good to include the Referer header as a default, by getting the URL of the current page. Just like with cookies. I was wondering for a long time why my request was not working as it did in the old version, and the JS console.

It was a POST request that required the referer header to be set to the current page I was on, presumably to stop requests from other pages.

[NoneGiven]

Makes sense to do this automatically for same-origin requests, matching the behavior of both GM_xmlhttpRequest and normal XHR. For cross-origin, the user can manually specify the referrer they want.

[prednaz]

GM.xmlhttpRequest does match the behavior of normal XHR. Neither of them sends a referer breaking my code which works in tampermonkey.

[prednaz]

And are you sure GM_xmlhttpRequest would send a referer? I have not yet checked the latest greasemonkey version including GM_xmlhttpRequest but by the last comment on https://greasyfork.org/en/forum/discussion/6928/gm-xmlhttprequest-vs-xmlhttprequest it was not the case in 2015.