Tweet crashes Mac Twitter client • Hacker News Board

dade_ wrote: post #50

youngerdryas wrote: post #31

ه҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈ͫͬͩͮͨͪͯͥͥͫͪͧͣͯͪͨͣͥͬͪ ҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈ͪͥͨͪͫͬͭͮͯͥͤͣͥͨͪͧͣͯͬͪ ҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈ͪͨͪͫͬͩͮͯͥͨͣͥͫͪͧͣͯͥͬͪ Cool. . . Edit: Apparently it is only the unicode >ه҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈ͫͬͩͮͨͪͯͥͥͫͪͧͣͯͪͨͣͥͬͪ ҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈ͪͥͨͪͫͬͭͮͯͥͤͣͥͨͪͧͣͯͬͪ ҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈ͪͨͪͫͬͩͮͯͥͨͣͥͫͪͧͣͯͥͬͪ>ه҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈ͫͬͩͮͨͪͯͥͥͫͪͧͣͯͪͨͣͥͬͪ ҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈҈ͪͥͨͪͫͬͭͮͯͥͤͣͥͨͪͧ…

Your post corrupts the rendering of this page on my iPad (4 iOS 6). http://s20.postimage.org/6athqkm3h/image.jpg

I know I see the same on Windows and OSX. Apparently it has something to do with Unicode scripts.

http://en.wikipedia.org/wiki/Script_(Unicode)

Edit: It is slightly different looking on Win7.

Re: Tweet crashes Mac Twitter client

#54

Post by ihuman » Mon, Feb 18, 2013, 2:29 PM UTC

This twitter account and tweet displays fine on TweetBot for iOS, but causes lag when scrolling.

Re: Tweet crashes Mac Twitter client

#55

Post by objclxt » Mon, Feb 18, 2013, 2:43 PM UTC

cicloid wrote: post #41

Also crashes Tweetbot on the Mac

If it's a CoreText bug, which is sounds like it is, it's going to impact any iOS or OS X app that uses Core Text for rendering. That's pretty much everyone.

Re: Tweet crashes Mac Twitter client

#56

Post by zmarn » Mon, Feb 18, 2013, 3:18 PM UTC

Really interesting, played around with it locally and it just kill two random neighboring tabs, while not effecting others.

Chrome 24.0.1312.57 | OS x 10.8.2

Re: Tweet crashes Mac Twitter client

#57

Post by [deleted] » Mon, Feb 18, 2013, 3:38 PM UTC

DouweM wrote: post #33

spdy wrote: post #18

Earlier quoted context omitted.

Interesting on chrome Version 24.0.1312.57 the tab crashes when i try to view the tweet but not here. Can someone explain what is happening and why the tweet is affecting the tab and this post does not? In the end both just render unicode characters. And it looks like only Firefox is able to display it correctly on OSX 10.8.

Chrome uses OS X's CoreText for rendering the tab titles, but uses its own text rendering engine for the site body. CoreText is the one that crashes on that unicode.

[deleted]

Re: Tweet crashes Mac Twitter client

#58

Post by zmarn » Mon, Feb 18, 2013, 4:32 PM UTC

DouweM wrote: post #33

spdy wrote: post #18

Earlier quoted context omitted.

Interesting on chrome Version 24.0.1312.57 the tab crashes when i try to view the tweet but not here. Can someone explain what is happening and why the tweet is affecting the tab and this post does not? In the end both just render unicode characters. And it looks like only Firefox is able to display it correctly on OSX 10.8.

Chrome uses OS X's CoreText for rendering the tab titles, but uses its own text rendering engine for the site body. CoreText is the one that crashes on that unicode.

After reducing the html-code in the site, it seems to me that it is not the title that causes the crash, but the p-tag with the specific css-style applied.

Re: Tweet crashes Mac Twitter client

#59

Post by zmarn » Mon, Feb 18, 2013, 4:53 PM UTC

Ok, I narrowed down what kills Chrome.

minimalist example:

  data:text/html;charset=utf-8,%D9%88%20%D2%88%D2%88%D2%88

It seems to be a problem with utf-8 vs. unicode + Times New Roman.

tested on: Chrome 24.0.1312.57 | OS x 10.8.2

Edit: also works with other fonts for example Arial

Re: Tweet crashes Mac Twitter client

#60

Post by eunice » Mon, Feb 18, 2013, 8:05 PM UTC

Doesn't crash Safari on 10.8.2