Browser Mixed Content Blocked

Browser "Mixed Content Blocked" means a secure HTTPS page is trying to load resources (images, scripts) over insecure HTTP. This guide covers everything you need to know about this topic, including common causes, step-by-step solutions, and answers to frequently asked questions.

Here are the key things to understand: HTTPS page loading HTTP resources = mixed content. Browsers block insecure scripts and may block images. Shows lock icon warning or broken padlock. Security risk: HTTP resources can be tampered with. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: Website loads images or scripts from HTTP URLs. Hardcoded HTTP URLs in page source code. CDN serving resources over HTTP. Third-party widget or ad using HTTP. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: For site owners: update all resource URLs to HTTPS. Use Content-Security-Policy: upgrade-insecure-requests header. Check browser console for specific blocked resources. For users: this is a website issue, not a browser issue. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

This article is part of our Browser Errors collection on Error Codes Wiki. We provide comprehensive, up-to-date information to help you find solutions quickly.