As you can see on a product page Browser Print SDK | Link-OS | Zebra there is no Edge browser in supported browsers and platforms list. Here are supported browsers: "Internet Explorer v11 or later, Chrome v51 or later, or Safari". It means that Edge browser may have compatibility issues.
Wouldn't be an option for you to use Internet Explorer? MS Edge is currently being rebuilt by Microsoft as a Chromium-based browser. So there is some chance to see it listed among Browser Print supported browsers in future.
Software Engineer, Kutir Mobility
Posted on behalf of Zebra Technologies