Mixed Content

web security issue

01 Definition

Mixed Content meaning: A secure HTTPS page that still loads some resources over insecure HTTP.

Mixed content happens when a page served over HTTPS also loads resources like images, scripts, or stylesheets over insecure HTTP. Browsers may block the insecure parts or warn users, and the page can lose its fully secure status. It weakens the protection HTTPS is meant to provide.

Also called

mixed active contentmixed passive content

Why it matters

How Mixed Content fits the work

Fixing mixed content keeps the whole page genuinely secure and avoids browser warnings or blocked scripts that can break layout and features.

In context

After the HTTPS migration, one banner still loaded over HTTP, so the browser showed a mixed content warning until the image URL was updated.

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Practical note

Active mixed content such as scripts is often blocked outright, which can break functionality. Update internal links and asset URLs to HTTPS rather than relying on browser fixes.