While working with Internet Explorer 7, I got this error:

Object doesn't support this property or method
Line: 2
Char: 13907
URI: addthis.com/js/250/addthis_widget.js

The thing that hurt more was, Chrome and Firefox were behaving properly. I spent some time searching the error but found nothing interesting. I gave up on that front and decided to have a peek in the AddThis JavaScript.

A bit more look around, I found something very interesting. IE7 has some scoping issue and it was picking up ‘my’ variable instead of AddThis counterpart (in my case it was variable called “c” that I had declared in my own JavaScript that was causing the problem).

Change the variable in your own JavaScript code to anything else and we all can live happily ever after.