Dear Maintainer,
apache 2.4.59 is send correct 100 Continue responce by HTTP, but not by HTTPS.
Sample html POST form is in 100c.htm, sample bash script is in 100c.cgi
*** Reporter, please consider answering these questions, where appropriate ***
* What led up to the situation?
* What exactly did you do (or not do) that was effective (or
ineffective)?
* What was the outcome of this action?
* What outcome did you expect instead?
*** End of the template - remove these template lines ***