The earlier versions of CFRS[] had an annoying bug that affected some mobile web browser users. On some mobile web browsers (such as Chrome on Samsung Galaxy S8), the drawing canvas would appear to be much larger than the viewport thus overflowing the visible screen of the mobile device. The user would then be required to manually zoom out in order to use this tool comfortably. This release fixes this issue.
CFRS[] is an extremely minimal drawing language consisting of only 6 simple commands: C, F, R, S, [, and ]. To play with CFRS[], visit susam.net/cfrs.html.