Created attachment 8906339 [details] screenshot of screen. User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0 Build ID: 20170909100226 Steps to reproduce: Navigate to http://canvaslaunch.naperville203.org:8000/canvaslaunch2.html click on Students: Sign in with d203 account signed in with my user name and password which i cannot disclose for obvious reasons. Actual results: Single Sign On page loads I enter username and password. Connection to sts.sd203.org was interrupted because the authenticity of the recieved data could not be verifies Expected results: login should succeed and bring to dashboard NOTE: This site works on FF Beta, FF Stable, Chrome, Vivaldi, and Internet Explorer.
Probably due to bug 1386754 - that server only supports RC4 and 3DES (and has a whole slew of other things wrong with it): https://www.ssllabs.com/ssltest/analyze.html?d=sts.sd203.org