This happened a while ago but just getting to it now because of my blog hiccup. A sharp-eyed reader pointed out a problem with my C# and VB Chakra hosting samples (on MSDN and on GitHub). When passing a host callback from managed code, I forgot to hold on to a managed reference to the delegate I was passing out to Chakra. So if the CLR ran a GC, it would dispose the delegate and then a callback on that delegate would jump into hyperspace. The samples are now correct. Ah, the joys of coordinating GCs.
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