Regexes don't work

[ComFreek]

I currently face some strange problems. I use the official 1.7 version from the Chrome Web Store (updated on April 27, 2014).

1. Go to http://stackoverflow.com
2. Search for this regex: modified \d+
3. It does not find any search results. It should find several occurrences of "modified 4 mins ago" or the like.

Also try:

1. Go to http://stackoverflow.com
2. There is a modified time within each entry of the question list. Example:
3. Search for asked 39 in this case.
4. The extension doesn't find any search results although it should!

Am I missing something?