Mime Validation for STL

[falconsmilie]

Hi.

I have a problem with mime validation. The application attempts to validate against uploaded 3D model file types with the following rule:

'mimes:step,stp,amt,stl'

Using this rule allows step, amt, and stp to be uploaded, but will not allow stl.

In the laravel 10 documentation it links to a file where "a full listing of MIME types and their corresponding extensions" are listed.

None of the above types, which pass validation, are listed on that page. stl is listed, but with the vnd.ms-pki.stl mime type and not the model/stl mime type.

The following rule also fails validation;
'mimetypes:model/stl'

On upload, In \Illuminate\Validation\ValidationData::initializeAndGatherData the $data variable's mime type is returned as model/stl.

At the same time, on upload, vendor/laravel/framework/src/Illuminate/Validation/Validator construct also returns model/stl.

Once submitted the uploaded file is then returned as application/octet-stream.

Is there a way to validate STL file types with the mimes rule?