Does anyone know how the instanceData property of a Geocortex request is encoded?
The entire request is JSON- key-value pairs, arrays, quoted strings, etc. - but the instanceData value is encoded. It looks similar to Base64 until you look closely and see slashes (/) and plus signs (+) throughout the string. I tried various online Base64 decoders but those I tried have been unable to decode the string.
Here's a very small piece of what I found with Fiddler. The entire request is 2+ MB.