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At least for Firefox, you can look at the browser error console (Ctrl+Shift+J) to always see error messages, even if the script failed to inject.
by jtvjan 5y ago
At least for Firefox, you can look at the browser error console (Ctrl+Shift+J) to always see error messages, even if the script failed to inject.
- cookie_monsta 5y agoNot for me. This: // ==UserScript== // @name HN test // @version 1 // @grant none // @include https://news.ycombinator.com/\\ https://news.ycombinator.com/\\* // ==/UserScript== alert("hello" shows nothing in a userscript, but: Uncaught SyntaxError: missing ) after argument list test.htm:23 in a local page