WSGI Middleware class that prevents cross-site scripting flaws in WSGI applications being exploited. Potentially malicious GET and POST variables are checked for, and if found, a 403 Forbidden response is sent to the client. Note that this class can false positive on input such as XML or passwords containing the < character, so it is not useful in all contexts. In addition, you should note that this middleware is not a replacement for properly validating input and quoting output.
