Forum Discussion

Copper Contributor

May 03, 2021

Solved

Trouble creating webapp for dual-screen

Hello, I wanted to create an webapp/website that is aware that the browser is spanned. While my webapp works with the experimental web platform features on Edge on the surface duo emulator and the br...

Craig_Dunn
May 10, 2021
davidasoe did you enable the feature flags on the device? While the features are in the version of Edge on the Surface Duo device, they are (unfortunately) still behind a feature-flag that you enable with edge://flags

The page looks like this on the device (I have already enabled):

Note that you can actually release a website with dual-screen support, and force the feature-flag on from the server using an origin trial token.

Here is a URL that I test with

https://conceptdev.github.io/web-samples/dual-screen-css/env.html

and how it looks on the device when Edge is spanned:

davidasoe

Copper Contributor

May 10, 2021

tscholze Actual device (46.03.4.5155) has a newer version than the emulator does, (45.06.6.5043)

Craig_Dunn

Microsoft

May 10, 2021

davidasoe did you enable the feature flags on the device? While the features are in the version of Edge on the Surface Duo device, they are (unfortunately) still behind a feature-flag that you enable with edge://flags

The page looks like this on the device (I have already enabled):

Note that you can actually release a website with dual-screen support, and force the feature-flag on from the server using an origin trial token.

Here is a URL that I test with

https://conceptdev.github.io/web-samples/dual-screen-css/env.html

and how it looks on the device when Edge is spanned:

davidasoe
Copper Contributor
May 11, 2021
Craig_Dunn I eventually resetted my duo and I got it working with the feature flag on edge. Thanks for helping.