fix: proper browser env check...

src/utils/utils.ts

@@ -1,8 +1,8 @@
 /* eslint-disable */
 import cloneDeep from 'lodash/cloneDeep';
 import copy from 'fast-copy';
-import { Buffer } from 'redstone-isomorphic';
-import { randomUUID } from 'crypto';
+import {Buffer} from 'redstone-isomorphic';
+import {randomUUID} from 'crypto';
 
 export const sleep = (ms: number): Promise<void> => {
   return new Promise((resolve) => setTimeout(resolve, ms));
@@ -78,9 +78,11 @@ export function bufToBn(buf: Buffer) {
 }
 
 export function isomorphicRandomUUID() {
-  if (self.crypto) {
+  if (isBrowser() && self.crypto) {
     return self.crypto.randomUUID();
   } else {
     return randomUUID();
   }
 }
+
+const isBrowser = new Function("try {return this===window;}catch(e){ return false;}");