# Testing in MS Edge fails

**URL:** <https://forum.katalon.com/t/testing-in-ms-edge-fails/13655>\
**Category:** Web Testing\
**Tags:** web-testing, katalon-studio\
**Created:** [October 10, 2018, 10:37am UTC](https://forum.katalon.com/t/testing-in-ms-edge-fails/13655 "2018-10-10T10:37:58Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Alan\_Mark\_Kristensen](https://avatars.discourse-cdn.com/v4/letter/a/ba8739/32.png) [@Alan\_Mark\_Kristensen](https://forum.katalon.com/u/Alan_Mark_Kristensen)\
**Post date:** [October 10, 2018, 10:37am UTC](https://forum.katalon.com/t/testing-in-ms-edge-fails/13655/1 "2018-10-10T10:37:58Z")

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When i try to run any test in the Microsoft Edge browser, i get the following error. I’ve made sure that the Katalon Studio web driver for edge matches the driver on my machine.

```auto
Test Cases/Test1 FAILED because (of) (Stack trace: com.kms.katalon.core.exception.StepFailedException: Unable to open browser with url: '' (Root cause: org.openqa.selenium.WebDriverException: Unable to parse remote response: Unknown errorBuild info: version: '3.7.1', revision: '8a0099a', time: '2017-11-06T21:07:36.161Z'System info: host: 'DESKTOP-HTPVMFO', ip: '172.16.120.103', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_181'Driver info: driver.version: CEdgeDriver)

```

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**Author:** ![David\_Edmondson](https://avatars.discourse-cdn.com/v4/letter/d/4bbf92/32.png) [@David\_Edmondson](https://forum.katalon.com/u/David_Edmondson)\
**Post date:** [October 10, 2018, 5:12pm UTC](https://forum.katalon.com/t/testing-in-ms-edge-fails/13655/2 "2018-10-10T17:12:23Z")

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The error states the URL is empty or Null…

Where is the URL defined in your scripts?

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<div class="post-metadata">

**Author:** ![Alan\_Mark\_Kristensen](https://avatars.discourse-cdn.com/v4/letter/a/ba8739/32.png) [@Alan\_Mark\_Kristensen](https://forum.katalon.com/u/Alan_Mark_Kristensen)\
**Post date:** [October 11, 2018, 7:47am UTC](https://forum.katalon.com/t/testing-in-ms-edge-fails/13655/3 "2018-10-11T07:47:07Z")

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In the project when i created it. If i launch in Fireforx or Chrome it works fine. It is only in Edge it fails.

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**Author:** ![Leah\_Kenyon](https://avatars.discourse-cdn.com/v4/letter/l/e5b9ba/32.png) [@Leah\_Kenyon](https://forum.katalon.com/u/Leah_Kenyon)\
**Post date:** [October 25, 2018, 10:52am UTC](https://forum.katalon.com/t/testing-in-ms-edge-fails/13655/4 "2018-10-25T10:52:07Z")

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I’m currently having the same issue, it worked previously then I had to change some config for another browser and it has stopped.

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**Author:** ![Alexander\_Heinz](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/alexander_heinz/32/1430_2.png) [@Alexander\_Heinz](https://forum.katalon.com/u/Alexander_Heinz)\
**Post date:** [January 4, 2019, 11:12am UTC](https://forum.katalon.com/t/testing-in-ms-edge-fails/13655/5 "2019-01-04T11:12:38Z")

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It started when Microsoft switched the WebDriver to a feature on demand ressource. Since then I wasn´t able to execute tests on Edge because of above error. Before that everything worked fine when WebDriver.exe in the ressource/driver folder of Katalon was replaced by the correct OS/Edge version. But now even if the correct version is set up it leads to this failure.

I thought the fail is obvious but after 3 Katalon releases without any fix I assume the majority of users does not have such issues.

Are there any solutions for this or is at least the Katalon Crew aware of this problem?

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**Author:** ![jan.dubois](https://avatars.discourse-cdn.com/v4/letter/j/cc9497/32.png) [@jan.dubois](https://forum.katalon.com/u/jan.dubois)\
**Post date:** [January 31, 2019, 1:00am UTC](https://forum.katalon.com/t/testing-in-ms-edge-fails/13655/6 "2019-01-31T01:00:00Z")

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Is there someone who had a fix for this issue?