HTTPS Everywhere: microchip.com broken https support

The web server at Microchip (www.microchip.com) isn't properly configured to deal with https. Although the home page loads correctly, clicking on any of the links on the page results in:

Internal Server Error - Read The server encountered an internal error or misconfiguration and was unable to complete your request.

Disabling HTTPS Everywhere for that site solves the issue.

Firefox 16.0.1, Debian Linux, HTTPSE 3.0.1

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