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How to log out user from web site using BASIC authentication?

...irst 401, Chrome reverts back to the old (correct) password. So it really didn't delete the password in the first place it seems. – vancan1ty Jan 8 '16 at 22:10 ...
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CSS filter: make color image with transparency white

...nvert(1); html { background: red; } p { float: left; max-width: 50%; text-align: center; } img { display: block; max-width: 100%; } .filter { -webkit-filter: brightness(0) invert(1); filter: brightness(0) invert(1); } <p> Original: <img src="http:...
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What are file descriptors, explained in simple terms?

...e maintained, where first one is per-process and the second one is system wide. FD in per-process table (i.e fdtable) is not unique system wide. However it maps to v-node table that contains the system wide unique entries. So when you call fopen() and fileno() function to check the descriptor then y...
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Validate a username and password against Active Directory?

How can I validate a username and password against Active Directory? I simply want to check if a username and password are correct. ...
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Xcode is not currently available from the Software Update server

... This worked for me. I signed in with my Apple ID. I'm not 100% sure I even have an active Apple Developer license, but I did in the past. You may need an existing developer account to get in, but the link and the installer did work for me. – Jim Ste...
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Storing Image Data for offline web application (client-side storage database)

I have an offline web application using appcaching. I need to provide it about 10MB - 20MB of data that it will save (client-side) consisting mainly of PNG image files. The operation is as follows: ...
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What is the best way to implement nested dictionaries?

...is the best way to implement nested dictionaries in Python? This is a bad idea, don't do it. Instead, use a regular dictionary and use dict.setdefault where apropos, so when keys are missing under normal usage you get the expected KeyError. If you insist on getting this behavior, here's how to shoo...
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How can I select multiple columns from a subquery (in SQL Server) that should have one record (selec

...y how to select multiple columns from a subquery: SELECT A.SalesOrderID, A.OrderDate, SQ.Max_Foo, SQ.Max_Foo2 FROM A LEFT OUTER JOIN ( SELECT B.SalesOrderID, MAX(B.Foo) AS Max_Foo, MAX(B.Foo2) AS Max_Foo2 FROM B GR...
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SSL certificate rejected trying to access GitHub over HTTPS behind firewall

... Hi ptillemans! You've successfully authenticated, but GitHub does not provide shell access. Connection to github.com closed. pti@pti-laptop:~$ (Note: if you never logged in to github before, ssh will be asking to add the server key to the known hosts file. If you are paranoid, it is recomm...
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How can I use an array of function pointers?

...a, int b); int div(int a, int b); int (*p[4]) (int x, int y); int main(void) { int result; int i, j, op; p[0] = sum; /* address of sum() */ p[1] = subtract; /* address of subtract() */ p[2] = mul; /* address of mul() */ p[3] = div; /* address of div() */ [...] To call one of those f...