``` Source map error: request failed with status 404 Resource URL: http://localhost/mantis/plugin_file.php?file=Snippets/jquery.qtip.min.js Source Map URL: jquery.qtip.min.map ``` https://developer.mozilla.org/en-US/docs/Tools/Debugger/Source_map_errors The `jquery.qtip.min.css` file's last line points to the source map. ``` //# sourceMappingURL=jquery.qtip.min.map ``` Since we don't really need this for production use, it should be removed from the bundled js.