[fix] SharePoint: We only support embedding content from secure websites

If you are trying to embed an eternal URL to your SharePoint page and you get the below error, well your URL should be a secure one that starts with https

Why are HTTP URLs not allowed? It is a security measure taken by SharePoint to prevent malicious content from being embedded in pages that can potentially be harmful to users.

Fix:

Belore:

<iframe src="http://code2care.org/sharepoint/embed-web-page-in-sharepoint" width=300 height=300></iframe>

After:

<iframe src="https://code2care.org/sharepoint/embed-web-page-in-sharepoint" width=300 height=300></iframe>