Videos Not playing in Safari 10.0.3

It works fine in Chrome, does not work on any of the 3 computers i have running safari version10.0.3. the 10.0.2 are fine.

This is the error i see in the browser error console.

Failed to load resource: Request header field DNT is not allowed by Access-Control-Allow-Headers.
I would appreciate it if i could get a response or it just fixed.

1 Like

I am having the same issue. Same error messages in the console too.

Come on RW Team - we are paid subscribers - please fix!

Just to let you know, I just canceled my subscription. MY LAST THREE POST HAVE NOT BEEN ANSWERED TO. Very SAD.

1 Like

I too have this issue right now with both my Chrome and Safari

In the console I see following errors

911-elegant-transitions-with-hero:1 XMLHttpRequest cannot load No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Origin ‘’ is therefore not allowed access. The response had HTTP status code 404.

It’s really frustrating as I want to spend the morning hours on these tutorials and I’m end up wasting it with troubleshooting it.

Hi @mayooresan

Sorry for the problems you’ve been experiencing with this course. This was due to a CDN issue with our provider. They’re working on a fix for it, which should be deployed by the end of the week.

In the meantime, I’ve just deployed a version of the site that should allow you to view videos again. It uses a fallback video player, which doesn’t have quite the same functionality that you’re used to, but it will at least allow you to watch videos again.

Once again, apologies for the the problems


@samdavies Thank you so much. It’s working fine now :blush:

1 Like