Also, by observing HTTP headers sent to retrieve and deliver the image the attacker may view the user agent string and any cookies associated with the domain the image is requested from. However, the attacker would not have the ability to affect the rest of the webpage, only the section of the page where the image is loaded.Īn attacker may infer information about user browsing activity by observing which images are served to the user, thus deriving pages viewed. For example, an attacker could replace an image served over HTTP with an inappropriate image or a misleading message to the user. More simply stated, Passive HTTP content has a limited effect on the HTTPS website. Mixed Passive Content is HTTP Content on an HTTPS website that cannot alter the Document Object Model (DOM) of the webpage.
Mixed passive content or display content. Two types of content impact the user experience of viewing a web page and, in the context of Mixed Content, each has various levels of risk: If either browser detects certain types of content on the page coming from insecure (http) channels, the browser will automatically prevent the content from loading and you'll see a shield icon appear in the address bar.īy blocking the content and possible security gaps, Chrome and Firefox protects your information on the page from falling into the wrong hands. If you're visiting a site via a secure connection both Google Chrome and Firefox verify that the content on the webpage has been transmitted safely. Websites that ask for sensitive information, such as usernames and passwords, often use secure (https) connections to transmit content to and from the computer you're using. What is mixed content and why does it matter? Google Chrome and Mozilla Firefox have implemented Mixed Content Blocking processes to protect computers from security attacks exposed via unsecured content referenced from secured pages.
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