My colleague, Brian, had this problem and posted it on our Slack channel. I suggested he share it out further, and since he isn’t blogging yet (I keep encouraging him to do so), I offered to post it for him. He thinks this would mainly happen to something other than an MVC site. In his case it was a console application which didn't have WebApi packages included by default. There was a pretty popular solution that involved by passing the ReadAsAsync<MyModel>() call and instead doing a ReadAsStream() ......
I needed a way to quickly format JSON that I copied from the Network view in Google Chrome Developer Tools. A co-worker pointed me to the Notepad++ (or use Chocolatey to install Notepad++) plugin JSMin. Now all I have to do is copy the JSON into Notepad++ and Alt + Ctrl + M and I can see it easily.Update: http://jsonviewer.stack.hu/ is a great online tool. It has a nice visualizing tree view as well ......