2011 Sep 20, 7:17There's no race between posting to a web worker and the web worker setting up its message handler as long as the web worker sets its message handler in the first sync. block of code that runs in the
web worker: "Basically, once the initial worker script returns, the worker's port is enabled and the normal message port event delivery mechanism kicks in (including dropping unhandled messages on
the floor)."technicalweb-workerwebbrowserprogrammingpostMessage
2011 Aug 6, 1:53Description of the inner workings of both of Window's TLS options, the Win32 APIs like TlsAlloc as well as __declspec(thread). I didn't know that the max number of TLS indices is now 1088.blogprogrammingdevelopmentwindowsdebugtlsthread-local-storage
2011 Jul 26, 10:00Opera has stats on what an 'average' web page looks like it in terms of HTML elemenets and attributes used etc.webdevelopmenthtmlstatisticstechnicalopera
2011 Jul 14, 7:34A bookmarklet to help you create an appcache manifest: "...click the manifestR button, and it will create an HTML5 appcache manifest file for that page."developmentjavascripttoolshtml5cachetechnical
2011 Jul 1, 10:15"This specification defines the canonical link relation -- an element which designates the preferred version of content/URI from a set of duplicate or near duplicate pages."linkuriurlhtmlreltechnicalstandardrfccanonical
2011 Jun 21, 1:22"This document defines the concept of an "origin", which is often used
as the scope of authority or privilege by user agents. Typically,
user agents isolate content retrieved from different origins to
prevent malicious web site operators from interfering with the
operation of benign web sites. In addition to outlining the
principles that underly the origin concept, this document defines how
to determine the origin of a URI, how to serialize an origin into a
string, and an HTTP header, named "Origin", that indicates which
origins are associated with an HTTP request."ietfreferencetechnicalwebbrowseruser-agentwebbrowserorigin
2011 Jun 20, 2:25I knew it was a game but still felt bad war-dialing and otherwise messing around in there. What if I accidentally find a way out? "Telehack is the most interesting game I've played in the last
year... a game that most users won't realize is a game at all. It's a tour de force hack — an interactive pastiche of 1980s computer history, tying together public archives of Usenet newsgroups, BBS
textfiles, software archives, and historical computer networks into a multiplayer adventure game." Also, see all the accounts of people finding their teenage selves in the game.internettechnicaldevelopmenthacktelnetwardialgame
2011 Jun 20, 2:20"Genius sorting algorithm: Sleep sort 1 Name: Anonymous : 2011-01-20 12:22 Man, am I a genius. Check out this sorting algorithm I just invented.
#!/bin/bash
function f() {
sleep "$1"
echo "$1"
}
while [ -n "$1" ]
do
f "$1" &
shift
done
wait
example usage:
./sleepsort.bash 5 3 6 3 6 3 1 4 7
2011 Jun 20, 2:09"Why did the hackers at Lulz Security ("LulzSec") invade Sony Pictures websites, take down cia.gov, and release 60,000+ e-mail addresses and passwords? For the lulz, of course—but what might look
lulzy to one person could certainly enrage another. In honor of its 1,000th tweet, the witty wankers of LulzSec released a manifesto of sorts, defending their actions to the angry Internets."internetsecurityprivacyhacktechnical
I wanted to ensure that my switch statement in my implementation of IInternetSecurityManager::ProcessURLAction had a case for every possible documented URLACTION. I wrote the following short
command line sequence to see the list of all URLACTIONs in the SDK header file not found in my source file:
grep URLACTION urlmon.idl | sed 's/.*\(URLACTION[a-zA-Z0-9_]*\).*/\1/g;' | sort | uniq > allURLACTIONs.txt grep URLACTION MySecurityManager.cpp | sed 's/.*\(URLACTION[a-zA-Z0-9_]*\).*/\1/g;' | sort | uniq > myURLACTIONs.txt comm -23 allURLACTIONs.txt myURLACTIONs.txt
In
the PowerShell version I can skip the temporary files which is nice. 'diff' is mapped to 'compare-object' which seems similar to comm but with no parameters to filter out the different streams
(although this could be done more verbosely with the ?{ } filter syntax). In PowerShell uniq functionality is built into sort. The builtin -cmatch operator (c is for case sensitive) to do regexp is
nice plus the side effect of generating the $matches variable with the regexp results.
2011 May 23, 4:26Applying CORS to the media elements: "I've added a content attribute to <img>, <video>, and <audio> that makes the image or media resource be fetched with CORS And have the origin
of the page if CORS succeeded. The attribute is "cross-origin" and it has two allowed values, "use-credentials" and "anonymous". The latter is the default, so you can just say <img cross-origin
src="data.png">."corscrossdomainwebbrowserwebbrowserhtmltechnical
2011 May 10, 10:49Interesting standards disagreements showing up in specs: "Some implementers feel a same-origin restriction should be the default for all new resource types while others feel strongly that an opt-in
strategy usuable for all resource types would be a better mechanism and that the default should always be to allow cross-origin linking for consistency with existing resource types (e.g. script,
images). As such, this section should be considered at risk for removal if the consensus is to use an alternative mechanism."referencewebdevelopmentfontspecificationw3ccss3
2011 Apr 30, 4:33"The HTTP-based Memento framework bridges the present and past Web by interlinking current resources with resources that encapsulate their past. It facilitates obtaining representations of prior
states of a resource, available from archival resources in Web archives or version resources in content management systems, by leveraging the resource's URI and a preferred datetime. To this end, the
framework introduces datetime negotiation (a variation on content negotiation), and new Relation Types for the HTTP Link header aimed at interlinking resources with their archival/version resources.
It also introduces various discovery mechanisms that further support briding the present and past Web."technicalrfcreferencehttpheadertimemementoarchive
2011 Apr 27, 2:23"The gradual disappearance of open wireless networks is a tragedy of the commons, with a confusing twist of privacy and security debate. This essay explains why the progressive locking of wireless
networks is harmful — for convenience, for privacy and for efficient use of the electromagnetic spectrum."laweffwirelessinternettechnicalprivacysecurity
2011 Apr 14, 5:11This page and esp. the final comment on the page were very helpful with describing how to parse XML in PowerShell.powershellxmlxpathtechnicalprogramming
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