On your computer, open Chrome.
In your address bar enter: chrome://settings/content/javascript then see that Javascript is allowed.
If the address did not take you to that page, follow these steps:
At the top right, click More Settings.
At the bottom, click Advanced.
Under "Privacy and security," click Site settings.
Under Permissions, click JavaScript.
Turn on Allowed (recommended in general, but needed to use Backbone).
Internet Explorer
Open Internet Explorer and click on the tools button at the top right, then select “Internet Options”
Select the Security tab then click on “Custom Levels”
Scroll down to the Active Scripting setting and select “Enable” then press OK.
FIREFOX
First open firefox and type “about:config” into your browser’s address bar.
A prompt will appear, click I Accept the risk button.
From here, type Javascript.en into the search bar and one option should appear. Make sure the Value is set to true. If it is not, simply double click it to toggle.