Zend 2 从 iframe 中删除 https

Question

I'm trying to include an iframe into a Zend 2 view. No matter what I do the frame is displayed http. I have tried using the path like this

echo '<iframe src="/path/to/iframe.php">';

and

echo '<iframe src="https://www.example.com/path/to/iframe.php">';

Both show on the site as

http://example.com/path/to/file.php

It seems Zend is stripping out the https and replacing it with http.

I'm sure this is something simple. I've searched high and low and cannot find an answer. This is causing a problem as it is flagging up mixed content.

Answer 1

The problem wasn't with Zend but with the iframe itself.

Single page php gallery (which was the contents of the iframe) redirects to http.

Lesson learned here, always check that it is what you think causing the problem