The bug still seems to be present. You can use the testing on our website: navigate a Chrome browser with an ad-blocking extension to e.g. https://wholeftopenthecookiejar.eu/data/extensions/AdBlock/c... and click pdf-iframe-submitForm.
If the result shows cookies, it has not been fixed.
That's not what the fix was. Disable JS on the site, that should prevent the pdf running JS as well. (although it might prevent the pdf loading in the first place...). As kodablah pointed out, it's not a useful fix.
edit to clarify: sorry I thought you thought that fix was trying to fix the bug, but you weren't, so this comment doesn't make much sense.
edit to clarify: sorry I thought you thought that fix was trying to fix the bug, but you weren't, so this comment doesn't make much sense.