[WASM] Strange HTTP requests failing with 404 (NotFound)

[DierkDroth]

I'm taking a closer look at the HTTP requests made on startup. There are 3 requests which constantly fail with 404 (NotFound):

• uno-config.js (1st screenshot). Later on there appears to be a request for uno-config.js in the correct path.
• 2 requests for the root/wwwroot of the app (2nd screenshot)

I tested different WasmShellWebAppBasePath settings (e.g. /app/wasm/Latest/wwwroot/ or just blank), but those 404 appear on every setup.

How could those failed 404 requests be avoided?

[jeromelaban]

Thanks for the report. We're not reproducing this issue, you can troubleshoot by determining where the request originated from the code by looking at the link on the right of the list in the network tab.

Otherwise, a repro will help.

[DierkDroth]

Sorry @jeromelaban I'm not sure what you mean by this

by looking at the link on the right of the list in the network tab

Could you please be specific? Thanks

[DierkDroth]

@jeromelaban also - not sure if this relevant - I'm able to reproduce this consistently in Chrome Incognito mode

[DierkDroth]

@jeromelaban you actually could see the issue right on [UNO Gallery itself](https://gallery.platform.uno/) when running in incognito mode (1st screenshot)

There even is an additional one on web.config (2nd screenshot)

[jeromelaban]

Thanks. There's the link to the origin of the issue (the VM3.service-worker.js). This is likely caused by something related to the offline feature, where the file has an incorrect path. This is not a cause for any issues in the app at this time.

[DierkDroth]

@jeromelaban I'm not sure I understand. On all the cases which I inspected there is a mysterious 'VM3 service-worker.js' link (like in line 22 on the screenshots below).

What exactly is that? Where is this coming from? And how could I get of those failing (404) requests?
Isn't that UNO code?

[jeromelaban]

This is related to the PWA offline support feature, and while we'll fix this particular 404, this is not causing any functional issues to the app.

[DierkDroth]

Thanks for your feedback @jeromelaban. Appreciated...