So, i made a custom widget and added it into Portal as a Web App Builder Extension by using the manifest.json URL. It seems to be a successful deploy, as it even shows up in my Web App Builder, in the custom widget tab, but upon clicking "OK" after selecting my custom widget, nothing happens. Nothing.
I can add normal pre-built widgets just fine, it's just my widget that won't work.
Solved! Go to Solution.
Yes, now that you've mentioned it. It's a warning about CORS, saying the header isn't present, and another log message that reads: "No widget is selected. Unable to load https://portalURLhere.com/WidgetFolder/manifest.json"
That was just a generic url i typed in, the widget file is properly mapped inside the server, as i can browse its contents externally via URL. I have edited my previous response as to avoid confusion.