Drag and Drop facility not working

My Cloud Home - Personal Cloud Storage My Cloud Home
1

I am unable to Drag and Drop files from Finder on my Mac in My Cloud Home
I receive a message that says “this upload type is not supported by your browser”

2

@JulieK Drag and Drop is not supported by Apple Safari browser. Details are in the link below.
https://support.wdc.com/knowledgebase/answer.aspx?ID=19625