We also happen to stumble accross this bug. Using Apache 2.4.38 and Tomcat 7.0.90.
Applying the patch http://people.apache.org/~ylavic/patches/httpd-2.4.x-forward_100_continue.patch did not fix the problem in our case. Is this the correct patch? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1641238 Title: as a reverse proxy, a 100 continue response is sent prematurely when a request contains expects: 100-continue To manage notifications about this bug go to: https://bugs.launchpad.net/apache2/+bug/1641238/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs