For days, I have been trying to register at a site. Every time, after entering my information, it would be stuck on a loading animation which never ended. Today, on a hunch, I tried providing a different password with fewer special characters (only 1 was required) and it worked. I told the support person who was helping me with my registration problem that she should file a ticket with their developers because they might have a SQL injection vulnerability on their hands (a semicolon was one of the special characters in my original password). Hopefully not, but, at best, they are accepting characters which they cannot handle.