#COMPATIBILITY MODE INTERNET EXPLORER 9 HOW TO#

Removing the X-UA-Compatible header on IIS (e.g.: application/xhtml+xml) to serve HTML content, you’ll have Note that if your site uses a mime type different than text/html Rule rule that matches the text/html content-type To add the X-UA-Compatible header you can use a URL rewrite

#COMPATIBILITY MODE INTERNET EXPLORER 9 HOW TO#

How to configure IIS Adding the X-UA-Compatible header on IIS The Apache server configuration related documentation. htaccessįor the complete set of configurations, not just for this rule, see If you don’t have access to the main configuration file (quiteĬommon with hosting services), add the snippets in a. If you have access to the main Apache configuration file (usually called nf), you should add The above snippets work with Apache v2.2.0+, but you need to have Using the following: Header unset X-UA-Compatible The framework level, language level such as PHP, etc.), and thatĬannot be changed, you can try to remove it at the Apache level, However, if the header is added from somewhere in the stack (e.g. It (i.e.: something such as Header set X-UA-Compatible 'IE=edge'). The X-UA-Compatible requires removing the configuration that adds If the header is sent, in most cases, to make Apache stop sending Removing the X-UA-Compatible header on Apache Header set X-UA-Compatible 'IE=edge' # 2) Remove the header for all resources that should not have it. Adding the X-UA-Compatible header on Apache # Because `mod_headers` cannot match based on the content-type, # and the `X-UA-Compatible` response header should only be sent # for HTML documents and not for the other resources, the following # workaround needs to be done. How to configure the server to pass this hint How to configure ApacheĪpache can be configured to add or remove the X-UA-Compatible Not included before all other tags except for the and theĮxamples that pass the hint HTTP/. X-UA-Compatible meta tag is specified in the, but it’s X-UA-Compatible meta tag is specified in the : example X-UA-Compatible meta tag is specified with a value different than X-UA-Compatible meta tag is not specified: example The case when the HTTP response header cannot be set. X-UA-Compatible response header is sent, but the meta tag isĮxamples that pass the hint for defaults HTTP/. X-UA-Compatible response header is sent with a value different X-UA-Compatible response header is not sent: HTTP/. Examples that trigger the hint for defaults Is sent with the value of IE=edge, and that the meta tag isn’t The meta tag is not recommended as Chrome Frame has beenīy default, the hint checks if the X-UA-Compatible response header If the meta is used, it should to be included in the īefore all other tags except for the and the otherĪppending chrome=1 to the value of the HTTP response header or (e.g.: if the site is served on a non-standard port, as InternetĮxplorer’s preference option Display intranet sites in Compatibility View is checked by default). The meta tag is recommended, as the latter will not always work Of the two methods, sending the HTTP response header instead of using Will get the best possible user experience that browser can offer. Will force Internet Explorer 8/9/10 to render the page in the highestĪvailable mode in the various cases when it may not,Īnd therefore, ensure that anyone browsing the site from those browsers Or specifying the x-ua-compatible meta tag: Serving the page with the following HTTP response header: X-UA-Compatible: ie=edge Your page using the Internet Explorer 5.5 rendering engine. Not use the latest rendering engine, and instead, decide to render

Say, Internet Explorer 9, it’s possible that Internet Explorer will Because of this, even if the site’s visitor is using, let’s Internet Explorer 8/9/10 support document compatibility modes. That support document modes to use the highest one available. Highest-available-document-mode warns against not informing browsers Highest document mode ( highest-available-document-mode)

Troubleshoot webhint installation and runtime issues.

Leading '.' in `classList.add` or `classList.remove`.

Compatibility of CSS, HTML and JavaScript features.

webhint's recommended progressive web apps configuration.

Compatibility mode internet explorer 9