All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
I've frequently been bit by failures restarting my vpn on my Mac. The connection may appear to start up in Shimo (the menu icon will change) but it looks like vpnc can't connect.
Looking at the log, we see the connection gets stuck
ERROR: can't send packet: Can't assign requested address
This has plagued me for a while, and my only fix has been to restart the machine. I hate restarting my machine. So I finally made time to dig in and find a better solution
| #!/usr/bin/env python2 | |
| """ | |
| Author: takeshix <takeshix@adversec.com> | |
| PoC code for CVE-2014-0160. Original PoC by Jared Stafford (jspenguin@jspenguin.org). | |
| Supportes all versions of TLS and has STARTTLS support for SMTP,POP3,IMAP,FTP and XMPP. | |
| """ | |
| import sys,struct,socket | |
| from argparse import ArgumentParser |
Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000
| // Taken from the commercial iOS PDF framework http://pspdfkit.com. | |
| // Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved. | |
| // Licensed under MIT (http://opensource.org/licenses/MIT) | |
| // | |
| // You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it. | |
| // PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit. | |
| #import <objc/runtime.h> | |
| #import <objc/message.h> |
| // | |
| // StickyHeaderLayout.h | |
| // Wombat | |
| // | |
| // Created by Todd Laney on 1/9/13. | |
| // Copyright (c) 2013 ToddLa. All rights reserved. | |
| // | |
| // Modified from http://blog.radi.ws/post/32905838158/sticky-headers-for-uicollectionview-using THANKS! | |
| // |