Mixed content warnings occur when a website that is being loaded over a secure HTTPS connection is trying to load resources (such as images, scripts, or stylesheets) over an insecure HTTP connection. This can happen if the website’s code includes URLs for these resources that start with “http” instead of “https”. When this happens, the browser will display a mixed content warning to the user, and the resources will not be loaded.
Here are some steps you can take to fix mixed content warnings:
- Identify the resources that are causing the mixed content warnings by using browser developer tools or a mixed content scanner.
- Replace the URLs for these resources in the website’s code with URLs that start with “https” instead of “http”.
- If you are using a Content Delivery Network (CDN) to serve your static assets, make sure that the CDN is configured to use HTTPS.
- If you are using a plugin or library that is causing mixed content warnings, you can try disabling or replacing it with a different one that uses HTTPS.
- If you are unable to update a resource to HTTPS, you can use the HTML
<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">header to prompt the browser to upgrade all insecure requests to HTTPS. - Use browser developer tools to check the HTML source code and make sure that all resources are loaded using HTTPS.
In summary, Mixed content warnings happen when a website that is being loaded over a secure HTTPS connection is trying to load resources over an insecure HTTP connection. It can be fixed by identifying the resources that are causing the warnings, replacing the URLs for these resources in the website’s code with URLs that start with “https” instead of “http”, configuring CDN to use HTTPS, disabling or replacing plugins or libraries that use HTTP, using the meta header to upgrade all insecure requests to HTTPS and checking the HTML source code to make sure all resources are loaded using HTTPS.
