[sys32768]

For that query, the Chrome developer tools console spits an error like so:

>d.7527c434450544045365.js:1 Uncaught (in promise) SyntaxError: Invalid regular expression: /^(https?://)?([\w\.-_]*\.)?notepad++\./: Nothing to repeat (at

[jzig]

If you set a breakpoint there, the value it is trying to replace is "Notepad++" rather than "notepad", gotten from the Heading of "http://www.notepad-plus-plus.org" further up in the logic chain. Looks like the plus signs are incorrectly being added to the RegEx

[Svip]

Was someone trying to be funny, to change a "notepad" search for "notepad++", forgetting that + has a specific meaning in regex? Same error occurs with a search for "notepad++", though, but not "notepad+", funnily enough.

[dylan604]

wouldn't this be worse for not having the user provided search query sanitized for special characters?

[Svip]

My assumption is wrong. As others have noted, it's clearly parsing the title of the first result wrong. Edit: It's the parsing of the title of the infobox.

[_8j50]

Looks like a regex to detect notepad++ in a url that didn't escape the +'s? Weird, maybe a sponsorship thing

[jzig]

Yep they need to escape every character in the string not just the plus signs