Hi all

I’m pretty new to Elixir/Phoenix so hopefully this isn’t a noob mistake…

I am currently seeing an issue with (I think) the cache manifest whereby my site delivers HTML and CSS files properly but for JS files, the default HTML template is being delivered - which results in an error like:

Refused to execute script from 'http://example.com:4000/js/MyApp.prod.app.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.

Server console is showing:

[debug] Processing with Mag.PageController.index/2
  Parameters: %{"path" => ["js", "MyApp.prod.app.js"]}
  Pipelines: [:browser]
[info] Sent 200 in 245µs

Which suggests it thinks it has delivered the file - is that correct?

I can see in the Chrome Dev Tools Network tab that the response from this request is the app.html.eex file.

I have confirmed that the file listed as the current version in cache_manifest.json does exist on the server - the CSS files are (seemingly) being delivered in the same way and work fine.

The project was built on OSX, which is where the original phx.digest command was run. I am trying to use it on CentOS - I’m not deploying a full package, merely re-running phx.server on the CentOS box. I also tried running phx.digest on the CentOS box to no avail.

This may not impact anything but I’m running Phoenix inside a Docker container on the CentOS box.

Any help greatly appreciated and please let me know if I can provide any additional information.