fixed a syntax issue and multiple variable deleration

Author: mrin9

dist/rapidoc-min.js

@@ -1211,10 +1211,10 @@ export default class ApiRequest extends LitElement {
       const contentType = tryResp.headers.get('content-type');
       if (contentType) {
         if (contentType.includes('json')) {
-          if (/charset=[^"']+/).test(contentType)) {
+          if ((/charset=[^"']+/).test(contentType)) {
             const enc = contentType.split('charset=')[1];
             const buffer = await tryResp.arrayBuffer();
-            const respJson = new TextDecoder(enc).decode(buffer);
+            respJson = new TextDecoder(enc).decode(buffer);
             me.responseText = JSON.stringify(respJson, null, 2);
           } else {
             respJson = await tryResp.json();