Only secure content is displayed error in SharePoint online page viewer web part

In this SharePoint tutorial, we will discuss how to solve only secure content is displayed error which comes while using Page viewer web part in SharePoint Online/2013/2016.

Recently I was using page viewer web part in SharePoint Online site. I was displaying a URL inside the page viewer web part. But in IE it was showing error as Only secure content is displayed.

And once I click on Show all content. Then only it will show the content from the page viewer web part.

SharePoint online Only secure content is displayed page viewer web part
SharePoint online Only secure content is displayed page viewer web part

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Only secure content is displayed SharePoint

Below are two solutions which you can try to solve only secure content is displayed the warning message.

Inside my SharePoint online page viewer web part, I was trying to show http://www.enjoysharepoint.com URL.

Since SharePoint online site is an https site and this one is an HTTP site. It was showing that warning message. The page viewer web part url was like below:

Only secure content is displayed SharePoint 2013
Only secure content is displayed SharePoint 2013

When I change the URL to an “https” URL. It started showing the page without the warning message.

SharePoint page viewer only secure content is displayed

The other option is we can disable that warning message in the browser itself. Open Internet Explorer -> On the Tool menu, click Internet Options -> Click the Security tab and then click Custom level -> In the Settings box, scroll down to the Miscellaneous section, and under Display mixed content choose Enable.

It looks like below:

SharePoint online Only secure content is displayed
SharePoint online Only secure content is displayed

You may like following SharePoint Online Office 365 tutorials:

Hope this will be helpful to resolve SharePoint page viewer only secure content is displayed warning message issue in IE.

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