Made IsContextLost automatically set the flag by checking with the emscripten WebGL wrapper + added a LOT of logging messages right before throwing ErrorCode_BadSequenceOfCalls exceptions + increased the http request timeouts from 60 to 600 sec (big datasets in some recent customer use cases) + added IsContext lost through the Viewport/Context layer (to make it reachable from external API) + the same for the underlying device context (for debug)

--- a/Applications/Sdl/SdlOpenGLContext.cpp	Fri Aug 16 16:24:11 2019 +0200
+++ b/Applications/Sdl/SdlOpenGLContext.cpp	Wed Aug 21 16:16:30 2019 +0200
@@ -86,12 +86,11 @@
   }
 
 
-  bool SdlOpenGLContext::IsContextLost() const
+  bool SdlOpenGLContext::IsContextLost()
   {
     return contextLost_;
   }
-
-
+  
   void SdlOpenGLContext::SetLostContext()
   {
     contextLost_ = true;