It’s the mixed content blocker in Chrome.
To allow mixed content in Google Chrome:Click the shield icon in the far right of the address bar.
In the pop-up window, click Load anyway or Load unsafe script (depending on your Chrome version).
Note: The steps to “load anyway” must be completed for each page where the icon or message appears.To set your Chrome browser to ALWAYS allow mixed content:
Caution: If using this option, Chrome will no longer check for unsecured content of every webpage (not just the Pearson product you are using).
In an open Chrome browser, press Ctrl+Shift+Q on your keyboard to force close Chrome. Chrome must be fully closed before the next steps.
Right-click the Google Chrome desktop icon (or Start Menu link).
Select Properties.
At the end of the existing information in the Target field, add: " --allow-running-insecure-content" (There is a space before the first dash.)
Click OK.
Open Chrome and try to launch the content that was blocked earlier. It should work now.