SCRIPT1002: SCRIPT1002: Syntax error

[garthmountain]

Hi Jake, Firstly, thank you for this package, much appreciated.

I've just upgraded from v2.1.3 to v4.0.3. This above error appears in my console window on app load, when testing in Edge, Chrome works fine. My app is Angular 7 (with service workers), running localhost. Selecting the error takes me to the js bundle and marks the error line as the first line of the code below:

async function* iterate(...args) {
    // tslint:disable-next-line:no-this-assignment
    let cursor = this;
    if (!(cursor instanceof IDBCursor)) {
        cursor = await cursor.openCursor(...args);
    }

The code in node_modules/idb/lib/async-iterators.ts looks like (my Webstorm shows a lint err on the 4th line (let cursor...)):

async function* iterate(this: IDBPObjectStore | IDBPIndex | IDBPCursor, ...args: any[]):
  AsyncIterableIterator<any> {
  // tslint:disable-next-line:no-this-assignment
  let cursor: typeof this | null = this;

  if (!(cursor instanceof IDBCursor)) {
    cursor = await (cursor as IDBPObjectStore | IDBPIndex).openCursor(...args);
  }

My code looks like:

import {openDB} from 'idb/with-async-ittr.js';
.
.
private openIDB(): Promise<any> {
    return openDB(this.dbName, this.dbVersion, {
      upgrade(db) {
...etc
.
.
public getAll<T>(store: Stores): Observable<T[]> {
...etc
this.openIDB().then(async db => {
        const transaction = db.transaction([store], 'readonly');
        for await (const cursor of transaction.store) {
         allStore.push(cursor.value);
        }
        return allStore;
      })
...etc

[garthmountain]

Ps. should have mentioned, the lint error is "expression expected"

[jakearchibald]

From https://github.com/jakearchibald/idb/blob/master/README.md#async-iterators

Async iterator support isn't included by default (Edge doesn't support them).