When an arrow-end is added to a path, the console will send error message.
Author: vrbvillorCreated Apr 27, 2016Updated Feb 1, 2021
Error: Invalid value for attribute d="M0,0CNaN,NaN,NaN,NaN,NaN,NaN"q @ raphael.js:10v @ raphael.js:10y @ raphael.js:10D.attr @ raphael.js:11Raphael.el.draw @ raphael.extend.js:96show @ scene7.js:66(anonymous function) @ scene7.js:46z.doc.addEventListener.e @ raphael.js:10
If I don't use arrow-end it'll be nothing wrong.
Source: DmitryBaranovskiy/raphael