The version 1.12.0 will greatly simplify the required proxy code, you can see the new version of the server code here: https://github.com/zoomcharts/proxy-export-dotnet/blob/master/ProxyHandler.cs.
Note that now CSV and Excel (.xlsx) will be also generated in the browser, without the need of the proxy. The Excel file will actually be valid
.xlsx instead of the previous HTML file with
We also updated the library so that the proxy service is not required in Internet Explorer 10, 11 and Edge.
The service even before 1.12 is not required in Chrome 14+ and Firefox 20+ (but is required for Safari).
I have to clarify what is the iOS and Android support in this area.