webpage is blank after deploy it in hololens2,app works fine thougth

[Xudarker]

i clone Hololnes2GetStartedApp project then deploy it,it works fine,but webpage dont show up,its blank here.

For the record my working envt was:
Unity 2021.3.47f1
OpenXR 1.8.1
MRTK 2.8.3
Webview for Unity 0.17.1-pre5

[jhihzonghu]

hey, @michaelfarnsworth I have the same issue.
I followed the official document to build the basic WebView2 project (HoloLens2GetStartedApp) for the hololens2 device.

The result follows :
(1) The project works at Unity IDE successfully.
(2) The project might work on the Hololens2 device but the render is blank at the WebView2 widget.
(3) The project could not work on the Hololen2 simulation.

the developing environment :
(1) Unity 2021.3.24f1
(2) Visual Studio 2022
(3) MRTK Tools (WebView 0.17.1-pre.5)
(4) Hololens2 22621.1238
(5) Windows10 19045.3448

How can I resolve this problem?

B.R

[michaelfarnsworth]

@jhihzonghu could you run the sample under a debugger to see if any notable errors are output?

[jhihzonghu]

@jhihzonghu could you run the sample under a debugger to see if any notable errors are output?

Dear @michaelfarnsworth: Thanks for your suggestion. I solved this problem, It should add the extra NuGet plugins and install the webview2.
unfortunately, I have the other question to solve it. The question is, I do not how could I cancel the pin on the hololens2 app, and let the app follow the holographic optical elements.

BR.
Ken

[ruzrulit]

@jhihzonghu could you run the sample under a debugger to see if any notable errors are output?

Dear @michaelfarnsworth: Thanks for your suggestion. I solved this problem, It should add the extra NuGet plugins and install the webview2. unfortunately, I have the other question to solve it. The question is, I do not how could I cancel the pin on the hololens2 app, and let the app follow the holographic optical elements.

BR. Ken

Could you please tell what plugins did you install and how? I have the same issue. The project is running, but the web view is empty.

[michaelfarnsworth]

@jhihzonghu Sorry, I'm not sure I understand the new issue. Are you wanting to place or resize the app? The sample is very simple app and currently doesn't support such manipulation. However, without much work you could add the WebView control to an MRTK Slate, which would have manipulation controls built-in. Here's some documentation about Slates.

[jhihzonghu]

@jhihzonghu could you run the sample under a debugger to see if any notable errors are output?

Dear @michaelfarnsworth: Thanks for your suggestion. I solved this problem, It should add the extra NuGet plugins and install the webview2. unfortunately, I have the other question to solve it. The question is, I do not how could I cancel the pin on the hololens2 app, and let the app follow the holographic optical elements.
BR. Ken

Could you please tell what plugins did you install and how? I have the same issue. The project is running, but the web view is empty.

well, It needs to install WebView with NuGet and clone this tutorial project. I hope this response is at the time.

BR
Ken

[jhihzonghu]

@jhihzonghu Sorry, I'm not sure I understand the new issue. Are you wanting to place or resize the app? The sample is very simple app and currently doesn't support such manipulation. However, without much work you could add the WebView control to an MRTK Slate, which would have manipulation controls built-in. Here's some documentation about Slates.

I am sorry that I delayed to feedback result. yeah, I find this tutorial project does not support manipulation partial. According to the official document, the webView is still in the preview stage. After deploying this project at the Hololens2 and reviewing the sample code. I decided to use WebView in the unity scene with the standalone pattern.
By the way, it seems that WebView might not support interactions that dragging and scrolling/keying in the same object. might it?

THX

Ken

[michaelfarnsworth]

For input interactions, the app is responsible for handling, translating, and sending along to the WebView2 control. As there are various ways of handling input, it's up to the developer to implement this. In the sample app, some basic input is wired up. In the future, we may add more. That said, you should be able to achieve scrolling operations with the IWithMouseEvents.MouseEvent method.

[bensubytes]

hey, @michaelfarnsworth I have the same issue. I followed the official document to build the basic WebView2 project (HoloLens2GetStartedApp) for the hololens2 device.

The result follows : (1) The project works at Unity IDE successfully. (2) The project might work on the Hololens2 device but the render is blank at the WebView2 widget. (3) The project could not work on the Hololen2 simulation.

the developing environment : (1) Unity 2021.3.24f1 (2) Visual Studio 2022 (3) MRTK Tools (WebView 0.17.1-pre.5) (4) Hololens2 22621.1238 (5) Windows10 19045.3448

How can I resolve this problem?

B.R

How did you deploy it to the HoloLens? When I deploy the demo project, it keeps crashing constantly after a maximum of 5 seconds, I have opened an issue here as well but it seems like I am the only one with this issue.

[michaelfarnsworth]

Hi @bensubytes, have you tried deploying/launching from Visual Studio to see if there are any exceptions being thrown?