Microsoft: You can now test the Edge browser’s IE mode with the Internet Explorer driver

Microsoft has released a new tool to help developers ensure that old websites and apps work with Internet Explorer mode in Chromium-based Edge.

Internet Explorer (E) 11 is on the way out, and Microsoft ended support for it in key apps like Teams and Office last year. However, IE 11 remains a component of Windows 10 until June 15, 2022, after which support will drop in some versions of Windows 10.

IE mode in Edge can be used for backwards compatibility with legacy business apps and internal sites. IE mode in Microsoft Edge is supported until at least 2029 to give web developers eight years to modernize legacy apps and eventually remove the need for IE mode, Microsoft said last year.

SEE: Windows 11: Here’s how to get Microsoft’s free operating system update

To test these sites with IE mode, administrators can now use Edge with the Internet Explorer driver, an automated IE mode test server managed by the Selenium project. The driver supports JavaScript, implements the WebDriver specification, and can be downloaded from the Selenium project.

“To prepare for June 15, you can now use the Internet Explorer driver to validate that IE mode is the right fit for your business-critical legacy websites or applications,” Microsoft’s Zoher Ghadyali says in a blog post. .

“With just a few modifications to an existing test that runs on Internet Explorer, you can run your tests in Internet Explorer (IE) mode in Edge,” adds Ghadyali. “By running your tests in IE mode, you will be able to verify that any legacy web content that runs in Internet Explorer will work as expected in IE mode in Microsoft Edge.”

After June 15, Selenium recommends developers to test IE sites with IE mode in Microsoft Edge rather than IE 11 browser, as it will stop fixing issues with IE 11 at this point.

“The Selenium project won’t be removing support for IE 11 when it retires, but we won’t be actively fixing issues like we did with previous versions of IE,” he notes.

Selenium also notes that “the Microsoft Edge team is committed to supporting IE mode in Edge until 2029, when support for Windows 10 will be removed.”

Microsoft still recommends that organizations that depend on IE11 switch to the Edge browser before June 15, as it supports rendering modern and legacy web content.

To run the test in IE mode in Edge, administrators will need to install Edge, Selenium 4 or later language bindings and Internet Explorer driver version 4.0 or later. The driver must be configured with the Selenium system requirements.

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