Problems with FileStream.ReadAsync on WebGL loading of idbfs files

Hey there,

so, when I try to load files in the browser from the `idbfs` storage using ReadAsync, the file after the `await` never executes. It also doesn't send an error, it just fails.

Using synchronous `Read()` works, but that just feels so clunky to me.

Code (CSharp):

1.        
2.         log.debug("[GLTFLoader]: Opening Filestream to " + filePath);
3.         using (FileStream SourceStream = File.Open(filePath, FileMode.Open))
4.         {
5.             result = new byte[SourceStream.Length];
6.             log.debug("[GLTFLoader]: SourceStream " + SourceStream);
7.             SourceStream.Read(result, 0, (int)SourceStream.Length);
8.             // await SourceStream.ReadAsync(result, 0, (int)SourceStream.Length);
9.         }
10.         log.debug("[GLTFLoader]: finished loading " + result.Length);
11.         return result;
12.  

Has anyone tried this before and got it to work using async+await?

(Both methods work great in the editor or on macOS or Android)

 

I experience the same behaviour on an Oculus Quest using Unity 2020.1.17f. The code below

Code (CSharp):

1. using (FileStream SourceStream = File.Open(filePath, FileMode.Open) )
2. {
3. ....

never executes and leaves my task without doing anything :/