Adding an onCleanup hook to cancel dispatches and watches for Wpt

src/workers/dispatcher-main.ts

@@ -22,9 +22,9 @@ export const init = () => {
       payload,
       dispatcherQueue: JSON.parse(JSON.stringify(dispatcherQueue)),
     });
-    dispatcherQueue.queue.get(id).callBack(null, payload);
+    dispatcherQueue.queue.get(id).callBack(null, payload, id);
     if (!dispatcherQueue.queue.get(id).live) {
-      cancel(id);
+      cancelDispatch(id);
     }
   };
 
@@ -33,7 +33,7 @@ export const init = () => {
 
 const dispatch = (
   payload: any,
-  callBack?: (error: any, result: any) => void,
+  callBack?: (error: any, result: any, id?: number|undefined) => void,
   live?: boolean
 ) => {
   console.log({ caller: 'dispatcher-main / dispatch', payload });
@@ -66,7 +66,7 @@ const dispatch = (
   });
 };
 
-export const cancel = (id: number) => {
+export const cancelDispatch = (id: number) => {
   dispatcherQueue.queue.delete(id);
 };