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I am trying to create 'var mediaSource = new MediaSource();' but I get 'ReferenceError: MediaSource is not defined' It worked a few days ago, what happened?

machopsticks
machopsticks

I am trying to create a MediaSource object by 'var mediaSource = new MediaSource();' but I get 'ReferenceError: MediaSource is not defined'. This method worked for the site I was developing a few days ago but keeps throwing this error. How would I go about correcting this?

I am trying to create a MediaSource object by 'var mediaSource = new MediaSource();' but I get 'ReferenceError: MediaSource is not defined'. This method worked for the site I was developing a few days ago but keeps throwing this error. How would I go about correcting this?

Chosen solution

What is the value of media.mediasource.enabled ?

You can also try: 

var mediaSource = new MediaSource;

See:

[1] Available after switching the about:config preference media.mediasource.enabled to true.
Read this answer in context 👍 0

All Replies (3)

cor-el
cor-el
  • Moderator

Chosen Solution

What is the value of media.mediasource.enabled ?

You can also try: 

var mediaSource = new MediaSource;

See:

[1] Available after switching the about:config preference media.mediasource.enabled to true.

Modified by cor-el

machopsticks
machopsticks Question owner

cor-el said

What is the value of media.mediasource.enabled ? You can also try: var mediaSource = new MediaSource; See:
[1] Available after switching the about:config preference media.mediasource.enabled to true.

Thank you for your reply, I just figured out it was the media.mediasource.whitelist value being set to true. It is now set to false and everything is working as it should. I am not sure why my settings would have changed, maybe the recent update?

Thank you again.

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor

Currently, the whitelist is restricted to certain youtube and netflix domains. I'm not sure how others sites can effectively use MediaSource extensions in this situation.