When JavaScript is disabled, the content inside will be used instead, so this content must fit within its parent section. The HTML element defines a section of HTML to be inserted if a script type on the page is unsupported or if scripting is currently turned off in the browser. Other values that can be used with the http-equiv attribute include:Ī start tag for has been found inside a section within the, where it’s not allowed. However, refreshing a page automatically is a bad practice regarding accessibility, as users do not expect a page to do that, and doing so will move focus back to the top of the page, which may create a frustrating or confusing experience.

The most popular use of http-equiv are defining the content-type of the document as in the example above, although in HTML5 it’s preferred to use this instead: Īnother popular use of the http-equiv is setting an automatic reload of the web page, for example this will have the browser reload the page every 60 seconds: While HTTP response headers can be set from the server, not everyone has access to the server configuration, so an alternative is using to define settings that would otherwise require setting an HTTP response header. The http-equiv attribute is used in web pages to simulate an HTTP response header.

It should appear inside the section, like in this example: The common user experience pattern is a group of visual tabs above, or to the side of, a content area, and selecting a different tab changes the content and makes the selected tab more prominent than the other tabs.Ī element using the http-equiv attribute has been found in an unexpected place of the document. You can read the official post about retiring Google Chrome Frame that was posted in June 2013.Įlements with the role tab must either be a child of an element with the tablist role, or have their id part of the aria-owns property of a tablist.Īn element with the tab role controls the visibility of an associated element with the tabpanel role.

It allowed suitably coded web pages to be displayed in Internet Explorer by Google Chrome’s versions of the WebKit layout engine and V8 JavaScript engine. The plug-in worked with Internet Explorer 6, 7, 8 and 9. It was discontinued on Februand is no longer supported. It went stable in September 2010, on the first birthday of the project. Google Chrome Frame was a plug-in designed for Internet Explorer based on the open-source Chromium project, first announced on September 22, 2009. You’re probably seeing this issue because the page being validated includes the following meta tag: Īs the Google Chrome Frame plugin was discontinued on February 25, 2014, this is longer supported so you should change that meta tag to: The only value admitted for the attribute content in a is currently IE=edge. If we fix that document and move the tag within the body, the issue raised about disappears because it’s now in a valid context: For example, while this element is valid per se and is in the section, it is deemed invalid because the previous element made the validator consider it a body context: If the element is within the section, it may have been interpreted as a body context depending on previous elements. Check the attributes of the element and ensure it’s not within the section. A element has been found in an invalid body context.

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