Microsoft's compatibility View / Mode in Internet Explorer
As per Compatibility View / Mode in Microsoft IE10 and IE11 Compatibility View / Mode was introduced in Internet Explorer 8 to help existing content continue to work with Internet Explorer 7, giving time for developers to updated their content to support newer web standards. In previous versions of Internet Explorer the Compatibility View button would attempt to fix a broken standards-based website, by getting the page to appear like it did in Internet Explorer 7. Today however, many standards-based websites are broken by attempting to appear like they did in Internet Explorer 7.
In earlier version of IE such as IE 10 and older, IE offered the check box Display all websites in Compatibility View
option. This option caused problems with todays standard based websites. In IE 11, this option and the Compatibility View
button was removed. The Compatibility View add option was kept to allow the user put a website into Compatibility View / Mode on a individual bases. In addition Microsoft kept the check box Display intranet sites in Compatibility View
option. Today most intranet websites and web based appliances also meet standards-based web designs and this option in general is less important.
In earlier versions of IE such as IE 10, a Compatibility View button would indicate that a website is in Compatibility View / Mode.
When you hover over the Compatibility View button, you will get a Compatibility View popup message. In IE 11 the Compatibility View button is removed.
Steps to disable the Compatibility View / Mode setting in IE 11
Step 1:
- Open up Internet Explorer (IE 11)
- Press the Alt key on your keyboard, this will make a menu bar appear
- Click on the Tools menu tab
- Select the Compatibility View settings option
Step 2:
- In IE 11, the Display all websites in Compatibility View option is not available
- Uncheck the Display intranet sites in Compatibility View option
Note: If you feel that a URL can benefit from using Compatibility View / Mode, you can add it to the Compatibility View box.
Sometimes websites don't look like you expect them to—images might not appear, menus might be out of place, and text could be jumbled together. This might be caused by a compatibility problem between Internet Explorer and the site you're on. Sometimes this can be fixed by adding the site to your Compatibility View list.
As per Fix site display issues with Compatibility View in Internet Explorer 11 to add a site to the Compatibility View
list:
- Open Internet Explorer, select the Tools button , and then select Compatibility View settings.
- Under Add this website, enter the URL of the site you want to add to the list, and then select Add.
Note: If you add a site to the Compatibility View list
and the page looks worse, the problem might not be compatibility and you should remove the site from the list.
Once you turn on Compatibility View, Internet Explorer will automatically show that site in Compatibility View each time you visit. You can turn it off by removing the site from your compatibility list. Not all website display problems are caused by browser incompatibility. Interrupted Internet connections, heavy traffic, or problems with the website can also affect how a page is displayed.
To clear the list of Compatibility View
sites:
- Open Internet Explorer, select the Tools button , and then select Internet options.
- Under Browsing history, select Delete.
- In the Delete Browsing History dialog box, select the History check box, and then select Delete.
Conclusion
As you are using IE 11 through Selenium and IEDriverServer you don't need to worry about Compatibility View as this feature have been removed from IE 11.
Reference
You can find a relevant discussion in IE11 fails with “Netscape is not supported please used internet explorer” error when launch by Selenium