All The links declared are set to :// instead of http:// even though they have https added in the code. This is causing a issue with AMP page validation. Is there a way i can force http:// here?
When you are on HTTP and your browser requests an external script using hardcoded HTTPS, it safe. When you do otherwise, it's not safe. So, the best practice is not to hardcode the protocol in your code.
Safety is No. 1 priority, validation is secondary. So, keep relative
// instead of explicit
Or, you can move your site to SSL and use
https:// in every link.