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I am running a program in Mathematica that uses web browser automation, and is also connected to my email account. The program runs fine for a while, but after a few hours, I end up getting the following message:

Uncaught Throw[$Failed,CURLLink`Utilities`Exception] returned to top level.

The output that I get with the error message is the following:

Hold[Throw[$Failed, CURLLink`Utilities`Exception]]

I have done some searching on this site and others, but can't seem to find anything very related, except for this post:

Error "Throw::nocatch: Uncaught Throw[False] returned to top level" given each time I open a new Mathematica 10.1 session

Do these two cases seem similar enough that I should be able to resolve this issue by following the same steps provided by Ilian in the other post? Thanks!

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  • $\begingroup$ What version of mathematica are you running? And, what OS, too? $\endgroup$
    – rcollyer
    Commented Jun 3, 2019 at 14:44
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    $\begingroup$ @rcollyer - I'm running version 12.0, and it's on Windows 10. $\endgroup$
    – Jmeeks29ig
    Commented Jun 3, 2019 at 14:47
  • $\begingroup$ Next question, what functions are you using in your "web browser automation"? CURLLink`Utilities`Exception is used every where in CURLLink, so any info is helpful. $\endgroup$
    – rcollyer
    Commented Jun 3, 2019 at 18:21
  • $\begingroup$ @rcollyer - Sure, I'm using WebExecute a lot, as well as MailServerConnect. There are obviously others, but those are the ones that I think are the most likely to be causing the error. $\endgroup$
    – Jmeeks29ig
    Commented Jun 3, 2019 at 20:59

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