This blog is closed as of 2/2015. @EricLaw left Microsoft in 2012, but was named an IE MVP in '13 & an IE userAgent (http://useragents.ie) in '14.
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Today we present EricLaw’s 2nd law of Software: “ If your software platform is sufficiently popular, and it offers a GetVersion API, that API probably lies. ” Recently, a user of Telerik’s automated web testing product ( Test Studio ) filed a bug noting that they’d recently...
19 Feb 2014
Please Stop Polluting
When I surf the web, I almost always have Fiddler running, and as a consequence I see a lot of “hidden” pollution in pages. Much of this cruft has built up over the years, copied from site to site, probably with little critical thought about its necessity. Please remove any META tags you...
16 May 2012
Beware Silly Similes
Recently, there was a blog post which described a browser security feature as " like a seat-belt that snaps when you crash ." This wasn’t a particularly noteworthy event because similes are pretty common in our field. Almost e veryone likes similes because they enable the simplification of highly...
7 Feb 2012
Please don't make XHR run in synchronous mode
The Windows Error Reporting team reports that 8.4% of all hangs in IE9 in the past month are caused by XMLHttpRequest objects blocking the UI thread with a synchronous request. http://blogs.msdn.com/b/wer/archive/2011/08/03/why-you-should-use-xmlhttprequest-asynchronously.aspx If your page uses...
3 Aug 2011
Content-Length in the Real World
Earlier in IE9 , we tried to change the WinINET networking component to reject as incomplete any HTTP responses for which the Content-Length header specified more bytes than the server actually sent back. It turns out that some sites and applications expect to be able to specify an incorrect Content...
9 Mar 2011
Welcome to Security Theater...
From the things that make you go hmm.... department: http://personal.fidelity.com/misc/buffers/coming-soon-identity.shtml.cvsr Choose a question like “In what city was your high school?” then enter the answer. This kind of information gives us a way to identify you that someone else won’t know...
15 Sep 2009
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