Fixed runtime error in viewing registered slot #23
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The error:
The fix:
First, I just handled the error and wrote a clearer error page.
But it turns out that the function (SlotSelect) gets called multiple times already (I don't know why). And since the first (failed) function call no longer gives a runtime error, the next few tries end up with the correct answer. The user neither sees the initial runtime error nor the error page that I wrote.