SharePoint Hosted App secure content

Question

I deployed a SharePoint Hosted App.
When I use my App in my site through HTTPS, the browser (IE11) gives me the warning

only secure content is displayed

How can I undestand which content in my App is not secure?

Answer 1

What is causing the problem should be visible in your console, hit F12 to see developer tools, in your IE console you should see something like "SEC7111: HTTPS security is compromised by..." with the link to your insecure content.

You can also use other developer tools, such as Chrome developer tools, which will state something like "[blocked] The page at ... ran insecure content from ...".