The test code on page 370 spec
<.canvas viewBox="0 0 200 30">
Based on the attr specs for PentoWeb.GameLive.Component.canvas/1 on page 369, the expected attribute is view_box, hence, it should be corrected as
<.canvas view_box="0 0 200 30">
The test code on page 370 spec
<.canvas viewBox="0 0 200 30">
Based on the attr specs for PentoWeb.GameLive.Component.canvas/1 on page 369, the expected attribute is view_box, hence, it should be corrected as
<.canvas view_box="0 0 200 30">
Thank you! Will fix