Webview Extensions in Theia Electron

#1

Hi. I’m having an issue with using webview extensions in an Electron instance of Theia. I get a 404 resource not found error when I open the webview.

WebviewError.png
WebviewError.png814×686

The extension I’m using is: https://github.com/leocll/vscode-extension-webview-template

The command to open the webview is: “Example: Webview”

I also had to clone the extension repo, as I could not get the VSIX to work, but that may just be an issue with the VSIX he uploaded, I haven’t had issues with other VSIXs in Theia. If I place the repo folder into the plugins folder, the webview opens just fine, but has the 404 error instead of any contents.

The webview works fine in a browser instance of Theia.

Super sorry if this is an issue that has already come up, I looked around a little bit and couldn’t find anything, but it may have already been asked.

Any help or suggestions are appreciated!

[original thread by lucas-phillips]

#2

Hi, no i don’t think something like that was reported, could you file an issue please?

#3

There were some discussions how to debug resource loading for webviews in Theia. Maybe it can help you to investigate.

#4
#5

In Electron you should be able to open dev-tools via help menu and add breakpoints.

#6

[lucas-phillips]

I will definitely look into it. Thank you for the help. I filed the issue here: https://github.com/eclipse-theia/theia/issues/7156