Javascript debugging error in IE

Your browser is apparently running an add-on that injects scripts into loaded pages, and these scripts cause problems with IE11 (and 10).

You can configure Visual Studio to run IE in safe mode by adding an iexplore -extoff entry to the Browse With list and setting it as default, as explained here.

That said, I would recommend investigating which add-on is responsible for this situation, as it may have other adverse effects to your web usage (and to your privacy), and you may want to remove it if at all possible.