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Is that just me banned form adding courses to the shopping cart? It doesn't work neither on Firefox or Chrome. It seems those Udemy programmers "improved" something about a week or so. I did't have any issues before.

Was the course a free course or a paid one?

Instead of Add to Cart, have you tried Buy Now ? I was able to do so yesterday. Works in FF.
Gotta be some other issue - if they want to ban, I don't think they would not ban a user from purchasing their course (hits both the topline and the bottomline).

Cheers,
FFFF

Thanks feefiefohfum for your reply.

'Add to Cart' is always disabled and the button label is 'Unavailable', so when I click on 'Buy Now' it forwards to the shopping cart with 0 items. I also disabled Internet Security and cleared the cache.

Weird! For me, sometimes when the course page has just loaded, I've seen "Add to Cart" shown as "Unavailable". But, this changes to "Add to Cart" after 10-15 seconds max. Is there some privacy add-on which was upgraded recently? For e.g. I've had to disable Ghostery for Udemy. On one occasion, I also had to disable Ad-Block before Udemy website was functional (I generally use aggressive settings)

You can also try with a portable version of FF to see if it solves the problem.

HTH,
FFFF

It looks like it finally was resolved today, July 2nd.

I was trying Chrome and Firefox on different OS and PCs, - the result was the same:

HTTP 502 Status Code (Bad Gateway)

when adding any item to the shopping cart. It's an Ajax call via JavaScript, so it might be fixed by Udemy just now.

Vintom,

Hope the issue is resolved by now and you are able to successfully add courses to your library.

Cheers,
FFFF