# Ionic Native / Cordova InAppBrowser: Multiple `executeScript` Promises

I recently worked on a project with Ionic Native and Cordova. One thing I noticed (and took me some time to _resolve_), was an issue with the `then` function of the InAppBrowser plugin's `executeScript` Promise not being executed on iOS. 

> **TL;DR** When you use multiple `executeScript` Promises within one method, the `then` functions will not fire on iOS. You have to `await` results.

To illustrate the issue, let's declare a new InAppBrowser instance: 

```js
const browser = this.iab.create('https://example.com', '_blank');
```

Now, this would work just fine on Android:

```js
browser.on('loadstop').subscribe(() => {
  browser.executeScript({code: 'window.location'}).then((location) => {
    // do something with location
  });
  browser.executeScript({code: 'document.cookie'}).then((cookies) => {
    // do something with cookies
  });
  browser.executeScript({code: 'console.log("foo")'});
});
```

However, the code above will fail on iOS. As soon as you use more than one `executeScript` call within the same method, it will no longer run into the `then` functions of the `executeScript` Promise.

Instead, you have to `await` the results to get it working on iOS. Here's the updated `loadstop` subscription method (note the `async` keyword for the callback function):

```js
browser.on('loadstop').subscribe(async () => {
  let location: any = await this.iabResolveExecuteScript('window.location');
  // do something with location

  let cookies: any = await this.iabResolveExecuteScript('document.cookie');
  // do something with cookies
  
  browser.executeScript({code: 'console.log("foo")'});
});
```

And here's the helper method:

```js
iabResolveExecuteScript(code: string) {
  return new Promise((resolve) => {
    browser.executeScript({code: code}).then((result) => {
      resolve(result);
    });
  });
}
```