No disrespect to HostGator – I love them! But after moving my hosting to HostGator my “Press This” bookmarklet JavaScript no longer worked. Here is the very easy fix.
The problem:
Some hosts have lame mod_security rules that block unencoded urls, making Press This unusable.
Source: http://forums.hostgator.com/apache-upgrade-broke-feature-wordpress-t40603.html
The fix:
Replace:
u='+e(l.href)+'
With:
u='+e(l.href.replace(/\//g,'\\/'))+'
Source: http://wordpress.org/support/topic/press-this-results-in-404?replies=22#post-1008326
#16940 (Prevent 403 errors in Press This) – WordPress Trac