https://svgwg.org/svg2-draft/painting.html#LineJoin
Name: stroke-linejoin
Value: miter | miter-clip | round | bevel | arcs
Blink/Edge/Firefox/Safari accept three of these values, but reject 'miter-clip' and 'arcs'
Test page: https://jsfiddle.net/ericwilligers/d65zk84s/
Should these values be marked at risk for SVG 2.0?