[somename].loader.js not loading correctly from a docker container

[ljugtomten]

Hello!

I have been fighting a strange issue for the past week and now I need some help. I recently upgraded to the latest version of this library.

When I serve my application from inside a docker container I can not get it to load.

I am confrontend by the imfamous "Uncaught SyntaxError: Unexpected token '<'" in what appears to be the [somename].loader.js file

The strange thing is that the unity.loader.js files shows up as the react index.html in some strange fashion so I get why it says "unexpected" token.

I have read tons of threads where people get similar errors because of compression settings, and I have tried all kinds of settings. Right now I am running uncompressed builds.

And the strange thing is that when I run the application outside a container it works fine.

I am using ASP NET 5 in the backend.

Thankful for any help or ideas!

br
/Henrik

[jeffreylanters]

Hi! You're serving your files incorrectly. Duplicate of #57

[ljugtomten]

The unity files seem to be in the correct folder relative to the index.html file..... I am struggling to figure out what could be different in the container, when it is working ok when Im not running from a container...... The container is running linux.... could it be a windows vs linux difference somehow? (In running windows on my computer, but linux inside the container)

[ljugtomten]

I think I found it!
The path to the unity files had an uppercase letter in one of the folders. It worked fine on windows, but not inside the linux containers! 😄

[jeffreylanters]

It might help you debug problems like this in the future, I noticed a HTML response in your screenshot while you were highlighting a JavaScript file, that indicates that your server probably returned a not found page, instead of your JavaScript. Glad you've found the problem! Best of luck with your project.

[jeffreylanters]

(Could you mark this thread as the valid answer, this way it might help other people?)

[ljugtomten]

Sure, thanks a bunch for the help! 😄

[Loaki07]

Recently, I was having the same issue with the app not working inside docker containers/ec2 servers.
However, the issue was a single character in the path (build file name) that was in uppercase. This does not seem to cause issues in windows/mac but in linux it does.

We need to be aware of the build file name changes when exported from unity and used in path for the react app.

I've created a demo to dockerize a react-unity-webgl build here.