This canvas is resizable - drag the bottom right corner to change its dimensions.
Select composite for background:
To note: Javascript is not running in this browser environment. Our apologies, but this demo has not yet been updated to support progressive enhancement.
Test purpose
Compose a display combining two images, using a variety of globalCompositeOperation settings
Check that the magnifier effect only appears when the user moves the mouse cursor over the <canvas> element
Check that during/after resize the magnifier continues to magnify the area directly beneath the mouse cursor
Check to see that different composite operations result in different displays
