"There is a problem with this website's security certificate." (Internet Explorer)

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Internet Explorer may show an error message like one of these:

There is a problem with this website's security certificate.
Es besteht ein Problem mit dem Sicherheitszertifikat der Website.

This can occur when testing an HTTPS URL that has a self-signed or invalid security certificate.

There is a lot of information on how to disable these warnings, but none of the methods worked for us on Windows 7 with Internet Explorer 8 (8.0.7600.16385).

Unfortunately, if this error occurs, Squish will lose its access to the page. Furthermore, hooking into the page with rehook() and using the clearObjectCache() function will not work.

After manually clicking on “Continue to this website (not recommended)” the following page can be hooked into again with rehook(). (But the clearObjectCache() function will still not work.)

Unfortunately this manual click on “Continue to this website (not recommended)” cannot be automated with Squish’s nativeType() function because Internet Explorer ignores sending Enter and Return key presses (which in theory could be used for opening the “Continue to this website (not recommended)” link).

The best solution is probably to correct the certificate problem in Internet Explorer, possibly by obtaining and using a valid security certificate for the website.