Ok. Here is a workaround for anyone looking. Add the code snippet below to the file pp-handler.js located in FTP at:
wp-content\plugins\stripe-payments\public\assets\js\pp-handler.js
jQuery(document).ready(function(){
var url = window.location.href;
var name = 'coupon_code';
var results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(url);
var thiscode = decodeURI(results[1]) || 0;
var couponcode = jQuery(document.getElementById("coupon-code"));
var applycouponbtn = jQuery(document.getElementById("apply-coupon-btn"));
var customfieldsdiv = jQuery(document.getElementById("custom-fields-cont"));
if(customfieldsdiv.length && customfieldsdiv.val().length){
customfieldsdiv.prepend("<div class='pure-u-1'><legend>Customer Info</legend></div>");
}
couponcode.val(thiscode);
setTimeout(function(){
if(couponcode.length && couponcode.val().length){
applycouponbtn.trigger("click");
}
}, 3000);
});
Now just add the param to the end of your product link: &coupon_code=MYCOUPONCODEHERE
And of course replace MYCOUPONCODEHERE with a working coupon code set inside of Stripe payment options.
