WebApi ExceptionHandling.ExceptionHandler Sometimes Does Not Handle Global Exception. What ?!

See previous post on how to implement ExceptionHandler.

ExceptionHandler supposed to handle exception globally, but sometimes it does not… what ?!

There are few cases where ExceptionHandler will not capture exception. One of them is when CORS is enabled, see this.

To ensure ExceptionHandling to always capture exception, try:
1. If inherit from ExceptionHandler, override its method `ShouldHandle()`.

        public override bool ShouldHandle(ExceptionHandlerContext context)
        {
            return true;
        }

2. Instead of ExceptionHandling.ExceptionHandler, inherit and implement it’s interface `ExceptionHandling.IExceptionHandler`.

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