send urlencoded body only when in:formData

dist/swagger-ui.js

@@ -4244,7 +4244,7 @@ Operation.prototype.getBody = function (headers, args, opts) {
   }
 
   // handle form params
-  if (headers['Content-Type'] === 'application/x-www-form-urlencoded') {
+  if (headers['Content-Type'] === 'application/x-www-form-urlencoded' && param.in === 'formData') {
     var encoded = '';
 
     for (key in formParams) {
@@ -32278,4 +32278,4 @@ SwaggerUi.Views.StatusCodeView = Backbone.View.extend({
     }
     return this;
   }
-});}).call(this);
+});}).call(this);