<!DOCTYPE html> <html> <head> <script src="../../resources/js-test.js"></script> </head> <body> <script> var worker = startWorker('./resources/canvas-createImageBitmap-invalid-args-in-workers.js'); var canvas = document.createElement("canvas"); canvas.setAttribute("width", "50"); canvas.setAttribute("height", "50"); var ctx = canvas.getContext("2d"); ctx.fillStyle = 'green'; ctx.fillRect(0, 0, 50, 50); var data = ctx.getImageData(0, 0, 50, 50); worker.postMessage(data); </script> </body> </html>