Problem with regular expression.

[Abraham Cruz Sustaita]

I have in my system this two kind of url's for files:

http://site.com/img.jpg
http://site.com/img.jpg?123

I have this regular expression:

  if (req.http.Host == "s3.files.fileserver.com" && req.url ~
"\.(flv|mp4|jpg|xml|png|gif)(\?[a-z0-9]+)$") {
  }

but it only match the second one. How should I change it so it can match
both urls?

Thanks in advance.
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