Hi, Chris. I got another problem with HTMLSanitizer, that is, the
variable after filtering by HTMLSanitizer will can be use only once in
.html file. for example:

# in the .py file
content = 'This is a test.'
content = HTML(content).filter(HTMLSanitizer())
greeting = "Hello World!"

# And in the .html file
${greeting}
<span py:content="content">Content goes here</span>
${greeting}
<span py:content="content">Content goes here</span>

# The actually output
Hello World! This is a test.  Hello World!

# However, it should be..
Hello World! This is a test.  Hello World! This is a test.

I tested this with TurboGears. so is it normal?