I created a simple database to store the HTML data which the webview would render. I then added another field for the actual images. When the form is submitted, it calls FileMaker.PerformScriptWithOption and passes the JSON data. The FM script then performs some substitution on the form data so it parses properly so that it can decode the Base64 data into the container field.
You can download our sample file here. The file has a default user/pass of admin/admin.
6/8/2023 – Sample file updated, initial version only properly parsed PNG images, now parses JPEG files too.