Wrong extension while loading with windows.URL.createObjectURL(files[0])

I was trying to load **Dicom/Nifti** files on **file select** from an HTML page.
I am passing file selected as blob object to **windows.URL.createObjectURL()** which gives an intermediate URL without any extension.
I pass that URL to **VolumeLoader.load()** function.
As it does not detect any extension, it always loads Dicom parser and no support for other file types.
Is there a workaround for the same?