Why no TatWebScripter.OnRuntimeError ?

Currently, TatWebScripter.OnRuntimeError doesn't exist, it only outputs the runtime error into TatWebScripter.ContentFromString()
As a workaround, I'm using TatWebScripter.OnBeforeExecute to attach to AScripter.OnRuntimeError but I'm wondering if there is a reason why this event doesn't exist or if it could simply be added to TatWebScripter in a future update ?

Hello John, reason is just to avoid repetition. The "correct" event you can use (even though OnBeforeExecute is fine) is TatWebScripter.OnInitScripter event. There you have access to all TatScripter properties and events and can thus add the OnRuntimeError handler if you will.