MacOSX$ Open -n -a /Applications/Emacs.app --args -Q /tmp/full.js crashes immediately under MacOS 10.11 (15A284) El Capitan. MacOSX$ /Applications/Emacs.app/Contents/MacOS/Emacs -nw /tmp/full.js displays the file, which is full of wacky unicode characters. Peace --Devon P.S. The full.js file and crash stack trace are enclosed in a tar xz file.