I can not link to external website in .CHM file

After rebuilding the .CHM file, I get a syntax error in the .CHM with a link to an external website. See the pciture:

Funny enough, the link works in the .HTML files.

The source-code file is at: TaurusTLS/Source/TaurusTLS.pas at main · JPeterMugaas/TaurusTLS .

I reproduced the issue by clicking the entry in SeeAlso section. The CHM viewer is still IE based and it is incompatible with some modern web technologies.

The next update will use <a target="_blank"> for “href” attribute, external links will be opened by the default web browser.