[Question]

[HuaxiaGoodBoy]

Question

I'm developing a web app with Flet, but when I open it in the browser, the page fails to load. Here's the error log from the browser's console:

▶ Exception while loading service worker: Error: prepareServiceWorker took more than 4000ms to resolve. Moving on.
at flutter_bootstrap.js:1:2968

🔴 GET https://www.gstatic.com/flutter-canvaskit/db49896/../chromium/canvaskit.wasm net::ERR_CONNECTION_TIMED_OUT
🔴 Uncaught (in promise) TypeError: Failed to fetch
at g (flutter_bootstrap.js:1:601)
at flutter_bootstrap.js:1:2158
at I (flutter_bootstrap.js:1:22924)
at k.load (flutter_bootstrap.js:1:3234:4008)

🔴 GET https://www.gstatic.com/flutter-canvaskit/db49896/../chromium/canvaskit.js net::ERR_CONNECTION_TIMED_OUT
🔴 GET https://fonts.gstatic.com/s/roboto/v20/KFOmCnqEu92Fr1Me5WZLCzYlKw.ttf net::ERR_CONNECTION_TIMED_OUT

⚠️ Failed to load font Roboto at https://fonts.gstatic.com/s/roboto/v20/KFOmCnqEu92Fr1Me5WZLCzYlKw.ttf
⚠️ Flutter Web engine failed to complete HTTP request to fetch "https://fonts.gstatic.com/s/roboto/v20/KFOmCnqEu92Fr1Me5WZLCzYlKw.ttf": TypeError: Failed to fetch
⚠️ Rejecting promise with error: TypeError: Failed to fetch dynamically imported module: https://www.gstatic.com/flutter-canvaskit/db49896/../chromium/canvaskit.js

🔴 Uncaught (in promise) null

It seems like the app is failing to fetch resources (Canvaskit, Roboto font) from gstatic.com. Is there a way to configure Flet to use alternative CDNs for these dependencies?

Code sample

No response

Error message

No response

------------------------------------------------------

• I have searched for answers to my question both in the issues and in previous discussions.

[HuaxiaGoodBoy]

flet version: 0.24.0

[ndonkoHenri]

Can you please try the latest pre-release and let know if the issue still happens? (0.24.0 is quite old/outdated at the moment 😅)