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How does Access-Control-Allow-Origin header work?

Apparently, I have completely misunderstood its semantics. I thought of something like this: 16 Answers ...
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How to load all modules in a folder?

Could someone provide me with a good way of importing a whole directory of modules? I have a structure like this: 18 Answ...
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How to append a char to a std::string?

The following fails with the error prog.cpp:5:13: error: invalid conversion from ‘char’ to ‘const char*’ 13 Answer...
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Why am I getting “Unable to find manifest signing certificate in the certificate store” in my Excel

I've got an Excel add-in project that was created a couple years back in Visual Studio 2008. It's got some changes to be made so I've upgraded to Visual Studio 2010 (the only IDE I am able to use). Not sure if this is causing the problem but it's background information. ...
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LF will be replaced by CRLF in git - What is that and is it important? [duplicate]

When I create a new rails application I'm seeing a warning in git about LF replacement. I do git init git add . 2 ...
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Tainted canvases may not be exported

I want to save my canvas to a img. I have this function: 10 Answers 10 ...
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Disabling browser print options (headers, footers, margins) from page?

I have seen this question asked in a couple of different ways on SO and several other websites, but most of them are either too specific or out-of-date. I'm hoping someone can provide a definitive answer here without pandering to speculation. ...
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Why can't an anonymous method be assigned to var?

I have the following code: 7 Answers 7 ...
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symfony 2 twig limit the length of the text and put three dots

How can I limit the length of the text, e.g., 50, and put three dots in the display? 13 Answers ...
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Regular expression for floating point numbers

I have a task to match floating point numbers. I have written the following regular expression for it: 12 Answers ...