why png.js can bypass the cross origin constraint but not in jpg.js??

foliojs / png.js

A (animated) PNG decoder in JavaScript for the HTML5 canvas element and Node.js

http://devongovett.github.com/png.js

MIT License

491 stars 92 forks source link

why png.js can bypass the cross origin constraint but not in jpg.js?? #12

Closed AlvarHHM closed 11 years ago

AlvarHHM commented 11 years ago

I have been finding solution to convert cross origin image to data url until I found this open source project. I thought this was my solution. But turns out cross origin image only work in png.js, not in jpg.js

what is happening behind?

AlvarHHM commented 11 years ago

OOPs, sorry, turns out the image I used to test from wiki has a allow-cross-origin header, sorry, plz delete this issue either png.js,jpg.js can bypass the security...