When following the Auth0 tutorial for Blazor wasm, I get the following error in the console when my blazor app starts up:
Debugging hotkey: Shift+Alt+D (when application has focus)
blazor.webassembly.js:1 blazor Loaded 8.68 MB resourcesThis application was built with linking (tree shaking) disabled. Published applications will be significantly smaller.
blazor.webassembly.js:1 TypeError: Failed to fetch
at <anonymous>:1:876
at Function.<anonymous> (blazor.webassembly.js:1)
at blazor.webassembly.js:1
at Object.next (blazor.webassembly.js:1)
at blazor.webassembly.js:1
at new Promise (<anonymous>)
at r (blazor.webassembly.js:1)
at Function.e.initAsync (blazor.webassembly.js:1)
at blazor.webassembly.js:1
at blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
Promise.catch (async)
(anonymous) @ blazor.webassembly.js:1
n @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
blazor.webassembly.js:1 info: Microsoft.AspNetCore.Authorization.DefaultAuthorizationService[1]
Authorization was successful.
Strangely, the app still works and I can login just fine (see last line), but the error is a bit worrying. Anyone got any idea why it’s there, and if we can fix/suppress it somehow?
It’s worth noting that it’s definitely the authorization code that’s causing this. If I remove it, it works fine again (particularly the cascading and authorize view code in the App.Razor file).