Can't Open Draw.io In oneDrive

When I click the Open button on a .drawio file stored in SharePoint/OneDrive, I only get the screen shown in the screenshot below. It asks me to download the file, but does not give me an option to open it online.

I would like to know: How can I open and edit .drawio files directly in SharePoint/OneDrive (without downloading them to my local computer)?

Any guidance or best practices would be greatly appreciated.