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Web Browser widget causing crash on macOS

We're trying to use the Web Browser widget in a project and having issues with it on macOS. The engine crashes as soon as its added to the viewport. However it works fine on Windows.

In the process of testing the issue we created a empty blueprint project. Within it we created a new test widget blueprint, and added only a Web Browser widget to the canvas, setting its Initial URL to a random site (duckduckgo.com in this case). Inside the level blueprint we create the widget and add it to the viewport on user input (keyboard K). Running this causes the editor to crash when the event to add the widget is triggered.
We tried a few things to see if we could get it to work:

  • Leaving Initial URL empty: Does not crash, see a spinning "loading" animation.

  • On construct of our test widget, calling Web Browser's Load URL, passing "duckduckgo.com": Crashes

  • On construct of our test widget, calling Web Browser's Load URL, passing the path to a local html file: Crashes

  • On construct of our test widget, calling Web Browser's Load String, passing "Hello" as the content: Crashes

macOS is version 10.14.1, xCode is version 10.1, and using the UE 4.21.2 from GitHub.

Product Version: UE 4.21
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asked Mar 21 '19 at 08:40 PM in Bug Reports

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avatar image Jeff A ♦♦ STAFF Mar 22 '19 at 01:23 PM


We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.



avatar image cabrown242 Mar 22 '19 at 02:30 PM

Ok, will do

avatar image ufna May 23 '19 at 01:48 PM


Is there any news on it? Or any bug report we can track?

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