The play() request was interrupted error

## Expected Behavior
- No errors on the console.

## Current Behavior
- Lozad.js is trhowing a console error:

```
Uncaught (in promise) DOMException: The play() request was interrupted by a call to pause(). https://goo.gl/LdLk22
```

## Tested on:
* Browser Name and version: Google Chrome and Firefox Developer Edition (latest versions)
* Operating System and version (desktop or mobile): macOS Catalina