SSL with external static content server

Question

I have a .Net web application that for performance issues gets all the static data (CSS, Images, JS) from an external server that is on different location and different hosting company.

I want to enable SSL on my site without the users getting a message: "Page contains both secure and insecure elements"

Does this means I’ll have to get two SSL Certificates one for each server?

If I want the users to continue getting the static content from the external server what other options do I have?

Thanks.

Answer 1

Yes you do need to have SSL Certificate to the other server too