Hmm. Downloading the current viz.js from the releases page (v1.4.1) gives me a file that compresses down to 632K when I use 7-zip on its highest settings (7z -

Hmm. Downloading the current viz.js from the releases page (v1.4.1) gives me a file that compresses down to 632K when I use 7-zip on its highest settings (7z -mx=9 -mfb=258 -mpass=15 -tgzip a viz.js.gz viz.js).