There Might Be A Glitch in Determining If A String Represents A URL

There Might Be A Glitch in Determining If A String Represents A URL

I suspect there might be a glitch in determining if a string represents a URL or not. For example, I cannot embed the following URL. Perhaps the exclamation mark or parentheses are the culprit?

https://en.wikipedia.org/wiki/How_the_Grinch_Stole_Christmas!_(TV_special)