MIME type ('image/gif') is not executable

In the following site, we are getting the below mentioned console error, Please refer the source code of the site and let me know how can to resolve it.

Error:

Refused to execute script from 'http://ift.tt/2yr0sNI' because its MIME type ('image/gif') is not executable. secv.com/:1 Refused to execute script from 'http://ift.tt/2AALuq4' because its MIME type ('image/gif') is not executable

Site URL: http://ift.tt/2ys6M7T