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How to view/delete local storage in Firefox?
...roperties
localStorage.removeItem("foo");
localStorage.clear(); // remove all of localStorage's properties
Storage Inspector Method
Firefox now has a built in storage inspector, which you may need to manually enable. See rahilwazir's answer below.
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Thin web server: `start_tcp_server': no acceptor (RuntimeError) after git branch checkout
A Rails 3.2.0 app, working fine with Thin web server, both locally and on Heroku cedar stack.
9 Answers
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Cannot serve WCF services in IIS on Windows 8
...you get an error then use the below
C:\> DISM /Online /Enable-Feature /all /FeatureName:WCF-HTTP-Activation
C:\> DISM /Online /Enable-Feature /all /FeatureName:WCF-HTTP-Activation45
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How can I extract embedded fonts from a PDF as valid font files?
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You have several options. All these methods work on Linux as well as on Windows or Mac OS X. However, be aware that most PDFs do not include to full, complete fontface when they have a font embedded. Mostly they include just the subset of glyphs used ...
How can I determine if a variable is 'undefined' or 'null'?
...enceError and break execution if variable is not defined or referred to at all in the code, using typeof is safer.
– Mani Gandham
Jun 15 '14 at 9:49
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Error during SSL Handshake with remote server
...n docker, reverse proxy & web server.
This error started happening for all my websites all of a sudden after 1 year.
When setting up earlier, I generated a self signed certificate on the web server.
So, I had to generate the SSL certificate again and it started working...
openssl req -x509 -no...
JavaScript data grid for millions of rows [closed]
...ollbar itself - the scrollable area's height is set to the total height of all the rows. The rows are still being added and removed as the user is scrolling, but the scrolling itself is done by the browser. That allows it to be very fast yet smooth (onscroll events are notoriously slow). The cave...
How do I convert a Ruby class name to a underscore-delimited symbol?
... your working on though - you may not be working on a rails app (or even a web app).
– Louis Sayers
Sep 29 '15 at 20:14
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What is a “callback” in C and how are they implemented?
... exercised by running it in one window while using the telnet utility or a web browser to attempt to connect in another window.
I lifted most of the WinSock code from the example Microsoft provides with the accept() function at https://msdn.microsoft.com/en-us/library/windows/desktop/ms737526(v=vs....
What is the JavaScript version of sleep()?
...e 2009 when this question was asked, JavaScript has evolved significantly. All other answers are now obsolete or overly complicated. Here is the current best practice:
function sleep(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
async function demo() {
console.log...