Gravity Forms is an excellent plugin for creating forms, but requires loading jQuery in the front-end for AJAX submissions to work. Obiously we would like to avoid a full reload on submission, but also not include JQuery in this day and age where vanilla JavaScript is so capable.
This plugin makes use of the built-in REST API in Gravity Forms, and uses that to submit the form and perform validation. File uploads and multi-page forms are supported.
By only using vanilla JavaScript, this plugin is 1.5kB (v1.1 minified and gzipped), compared to the 31kB of jQuery (3.6.1 minified and gzipped). A 95% reduction in size!
1.1.1
Disable submit button while loading to prevent double submissions.
1.1
Add support for file uploads and test with WordPress 6.1. Managed to reduce the size of the plugin (gzipped) from 1.6kB to 1.5kB!
1.0