The approved/canvas/security.drawImage.canvas.html test fails with WebKit nightly build r70732 run in Safari 5.0.x.
This issue is not reproducible in FF, Safari 5.0.5 & Winlauncher setup (r86221). The test case is being passed in all the above cases
Safari TP 151 passes both test: https://wpt.fyi/results/html/semantics/embedded-content/the-canvas-element?label=master&label=experimental&aligned&view=subtest&q=security.drawimage.canvas