Hi Robin,
 
I came across your articles on HTTP POST printing. We are trying to implement this solution for a client. You also mentioned the CORS issue related to this type of printing that some have experienced. Were you able to further investigate to see if an update on the Zebra firmware might resolve the issue as you had mentioned that the print servers on the Zebra were atleast a decade old or so?
 
Would appreciate your feedback and advice!
 
Thank you!
 
Regards,
Ken