Force IE compatibility mode off using tags
To force Internet Explorer (IE) to use its modern rendering mode, add this line to your HTML <head> section:
This meta tag commands IE to bypass compatibility settings, pushing it into standard mode for consistent, updated rendering. For the best results, place this tag prior to any other elements, with the exception of the title tag.
Understanding the need
Ditching compatibility mode
In web development, compatibility modes often become a roadblock, forcing IE to behave like its outdated versions. By specifying edge in your meta tag, you instruct your website to use the latest features and standards accessible in IE.
Future-proofing your site
By choosing "IE=edge", you also prepare your site for future updates to IE. Unlike specifying a particular version like "IE=8", using "edge" ensures your site remains robust against changes in how the browser operates.
Broadly implementing modern standards
Thinking bigger? You can enforce the X-UA-Compatible tag across your entire website by making some server-side adjustments. This includes configuring HTTP Response Headers in the IIS Manager or, for a broader impact, updating your Web.Config or adjusting group policy settings.
Navigating the complexities
Emulation vs user agent directives
While <!DOCTYPE> directives affect emulate modes, the X-UA-Compatible meta tag is a different animal altogether. Its job: to instruct IE when to bypass outdated document modes. However, search engines and your DOCTYPE declaration won't be disturbed in the process.
Managing intranet settings
In many corporate settings, IE defaults to compatibility mode within the intranet zone. To avoid this predicament, untick the compatibility settings for the intranet zone within the IE settings. This lets your meta tag steer the ship without getting compromised by client settings.
Leveraging group policy
For a wider implementation, consider adjusting group policy settings to disable compatibility mode. This can prove more effective than individual meta tags and can improve performance across the board, which is always a win!
Client settings and forward planning
Dealing with client enforcement
Your website users might boldy go where no web developer has gone before and enforce compatibility mode through their machine settings regardless of your meta tags. But fear not, being aware of this possibility can guide your discussions with IT departments or end users.
The eternal "edge"
Using "IE=edge" is like a universal password for IE — it asks IE to always apply its latest supported document mode. This ensures your site keeps up with the changing technology landscape.
Breaking free from the lock-in
"Edge" mode is your one-way ticket out of the IE-version lock-in. By committing to adaptability and proactive compatibility, your users won't feel like they've time-traveled to the age of dial-up connections.
The flip side of "edge" mode
Despite its virtues, the "edge" mode is not without its flaws. Future versions of IE can stomp in and rain on your web development parade by displaying your site differently than intended. Frequent testing with tools like IETester can help in avoiding such surprises.
Was this article helpful?