I'm trying to validate max file size of 5MB, and it works on PC, on android phones, but fails everytime i use an iPhone. If i try to upload a photo of 6MB from a iPhone, it passes the validation but fails later because of my <jsonSerialization maxJsonLength="5000000"></jsonSerialization> restriction, and returns "Message": "Maximum request length exceeded." as expected.

So i added these lines on my $('input[type=file]').change(function):

var tam = $(this).get(0).files[0].size;
tam = tam / 1024;
alert('File size with division:' + tam);

And i get the alert saying that the 6MB photo in question has less than 4MB (3425kb), the code continues and then i get Maximum request length exceeded error.

I'm using:

1. asp.net Web Forms
2. .NET framework 4.6
3. bootstrap 4.6
4. bs-custom-file-input (plugin recommended by bootstrap)

Like i said, i'm only getting this error on iPhones.

Thanks in advance