Insecure content in iframe on secure page

Question

I\'m in the in the process of developing an application for a client, which will have an SSL certificate and be served under https. However, to integrate with their existing

Answer 1

If your page is http then it allows iframe with https content.

But if your page is https then it does not allow http content.

Lets put down following possibilities.

page - iframe - status

http - http  - allowed
http - https - allowed
https- http  - not allowed
https- https - allowed