Mobile: Selecting a new ink zooms the page

[alykat]

Noticed on Safari/iOS. In the "Flow" chapter, I

• tapped the "ink" button
• the browser zoomed into that corner of that page, and the color selector came up on the bottom half of the screen
• when i selected a color, the selector closed, but the page was still zoomed
• sometimes i would accidentally color on my canvas while trying to zoom out and scroll the full canvas back into view