Ever since I upgrade from Chrome 58 => 59 on Mac OS El Capitan, when I use Dev Tools Network inspector to view WebSocket frames, the frames no longer are visible. We build
The bottom "frame details panel" sometimes hides the "frames list" panel, unless you hover your mouse under a column header and drag down.
Update 1: As Sylvain Girard pointed out, this is Chromium issue 895548
Update 4: It's been fixed in Chrome 72, available in stable channel