Setting background music
Modern browsers such as Chrome, Safari, and Firefox block websites from playing audio in the background until the user has interacted with the page to ensure that this is what the user really wants. Websites often open pop up sites that annoy users with advertisements. So, the companies that make these browsers added measures such as preventing background audio to give the user more control over these annoying popups.
The browsers specifically don't want background music attempting to play when a page is first loaded, which we are trying to do by starting the music in our game's onLoad function. To fix this for our game temporarily, we can click on the padlock icon that is to the left of the website address and enable any sound permissions in Chrome. Then refresh the page and you will hear the background music again.
Figure 8.2 – Audio permissions in the Chrome browser
This is fine for development, but obviously...
