The only change was the addition of the 'On upload progress' trigger, which should not have affected any existing projects at all. I'm afraid it's impossible to say any more without the details provided by a bug report, as we need that information to be able to investigate.
Again, having issues getting signed in to Github. Here's what I can tell you:
Here are 2 c3p. Both are identical. One in 416, one is 407
drive.google.com/file/d/1u9h63j1Pbh53iUt1n4Sn11flneqzOHpN/view
drive.google.com/file/d/1dp-nLFxixwaLh-Rxne4u2vb_ajZVJGZu/view
Both look like this:
I added this line to my PHP class right at the top of the __construct function for my class that handles communication. This logs the output of the ajax post to the debug log.
error_log(print_r($_POST,true));
When I run this c3p in 407, I get this correct response in my debug log:
[20-Nov-2024 23:41:00 UTC] Array
(
[command] => connection_check
[PV] => 1.0.0.0
[N] => Ajax 407
[SH] => Layout 1
)
When I run the same code in 416, I get this in the debug log:
[20-Nov-2024 23:40:59 UTC] Array
(
)
This indicates to me that for whatever reason, the 416 version is not passing the post data to my php file. In 416, this ends up generating a CORS error as there's no post data to process so it sends back nothing, which is expected. In 407, this runs fine with the c3p reporting success and no console errors.