Like other said ActiveX Controls are no more supported however you can use following alternate solution.
* Build a Console / GUI Application/Service that will be installed on the machine on which the card gets connected
* build a web socket server that will expose interface for card reading in above console application
* Build a
Thorugh this web socket client you can pass instructions to read card reader.
You can find read sample clode from below
GitHub - hidglobal/HID-OMNIKEY-Sample-Codes: Sample codes for the OMNIKEY Smart Card Readers. Application contains simple examples of reader's functionalities based on the software developer guide.
Hoping this would give you initial point to start.