Why isn't it working.

Question

https://code.sololearn.com/Wv56Ao67iPM4/?ref=app

Polyline problem

Answer 1

<svg width="1000" height="1000"><polyline points="100,200 350,400"
style="fill:white;stroke:red;stroke-width:4"></polyline></svg>

Answer 2

polyline requires pairs of x and y coordinate. In you example code the 1st coordinate is incomplete.