It seems that anything that returns "++" (EDIT: in the "About" box), in this case "Notepad++", breaks their internal regex because it seems not to be sanitized properly The breaking code using chrome dev tools seems to be: n = new RegExp("^(https?://)?([\\w\\.-_] \\.)?" + o.toLowerCase().replace(/[-\s]/g, "") + "\\."); In this case "o" is "Notepad++" which might be the first result. The browser returns this error: In…
[\w\.-_]
should really be [\w\.\-_]
instead.But not that's not what caused the problem mentioned in this post.
(edited for clairifcation)