update form content type

Author: Spendil

package.json

@@ -1,6 +1,6 @@
 {
   "name": "widgets",
-  "version": "1.3.20",
+  "version": "1.3.21",
   "description": "Blockchain Visualization Widgets",
   "main": "dist/widgets.js",
   "directories": {

src/components/base.vue

@@ -53,6 +53,7 @@
             form.setAttribute('method', 'post');
             form.setAttribute('action', this.data.ideUrl);
             form.setAttribute('target', '_blank');
+            form.setAttribute('enctype', 'application/json');
             form.appendChild(createHiddenField('query', JSON.stringify(this.context.query.query)));
             form.appendChild(createHiddenField('variables', JSON.stringify(this.context.query.variables)));
             document.body.appendChild(form);