The extension will also post a message to the web page upon loading. Type: The extension will only pick up messages where the type is zebra_print_label The Zebra Printing extension will listen to those messages and print the zpl to the url. In your web app you can now directly print to Zebra printers by using window.postMessage(): If you reset the network on the printer or just switch it off and on it connects to the network again. Unfortunately those printers don't set any CORS headers which makes it impossible to use this HTTP endpoint in modern browser-based apps. Most Zebra Printers have a HTTP POST endpoint through which ZPL can be directly printed without the need for an installed driver, print dialogs popping up or other locally installed software. NOTE: This is an extension useful for developers who want to simply print ZPL labels directly from their web apps. Allows to print ZPL to a network connected Zebra printer.
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