Tampermonkey's GM_xmlhttpRequest not implementing 'context' property?
问题 I have written a UserScript for Greasemonkey (Firefox) and am testing it for compatibility with Chrome's Tampermonkey, and getting errors in the developer console: Uncaught TypeError: Cannot read property 'profile_url' of undefined Uncaught TypeError: Cannot read property 'encoded_name' of undefined The errors seem to be referencing the onreadystatechanged callback of GM_xmlhttpRequest which is called like this: var flairs = document.querySelectorAll('span.flair'); var steam_re = /(?:(?:https