fix: lazy load pixel worker

view/src/helpers/_pixelWorker.ts

@@ -1,16 +1,18 @@
-const worker = new Worker("build/workers/pixel-worker.js");
+let worker;
-
 let i = 0;
-
 let cb = {};
 
-worker.addEventListener("message", ev => {
+export default (msg: any): Promise<any> => new Promise((res, rej) => {
+
+  if (!worker) {
+    worker = new Worker("build/workers/pixel-worker.js");
+    worker.addEventListener("message", ev => {
       if (ev.data.i in cb) {
         cb[ev.data.i](ev.data.result);
       }
-})
+    })
+  }
 
-export default (msg: any): Promise<any> => new Promise((res, rej) => {
   i++;
   const _i = i;
   worker.postMessage({ i: _i, ...msg });