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<!DOCTYPE html> <html> <body> <canvas id="c" width="200" height="100"> </canvas> <script> var ctx = document.getElementById("c").getContext("2d"); ctx.save(); ctx.save(); ctx.rect(0,0, 1,1); ctx.restore(); ctx.fill('evenodd'); ctx.restore(); ctx.lineTo(10, 0); </script> </body> </html>