The error message (shown below) "Body contains unsupported tags or attributes: script" can appear when saving a template in the Shopify Order Printer app.
Luckily, this can be easily solved by making sure to create a new template instead of updating an existing one. Use the "Add template" button to create a new template.
After this, the template will save correctly.
If you're still having issues or questions, feel free to get in touch with our 24/7 support team.