MIME type for latest dash unpkg files is JSON not Script?

Dash Python
1

Hi,

I am seeing the following errors when running a Dash app, and it seems to be the case that dash source map files are being described as JSON? Is this an issue on my side or is this a server side bug?

Refused to execute script from ‘https://unpkg.com/dash-core-components@1.0.0-alpha4/dash_core_components/dash_core_components.min.js.map’ because its MIME type (‘application/json’) is not executable, and strict MIME type checking is enabled.

Refused to execute script from ‘https://unpkg.com/dash-renderer@1.0.0-alpha2/dash_renderer/dash_renderer.min.js.map’ because its MIME type (‘application/json’) is not executable, and strict MIME type checking is enabled.

1 Like
2

I had the same problem, I got into a deep rabbit-hole by allowing 3rd party cookies, etc. The only thing that finally worked was updating dash to its newest version (from 0.32.0 to 0.39.0) in the requirements text file. I don’t encounter that problem anymore. Hope this helps!

3

This fixed it earlier for me too. Some dash versions (especially the newer rc versions) didn’t work correctly for me. The lesson is always use the latest stable release.

4

thanks for showing the errors.
systems architect