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Origin is not allowed by Access-Control-Allow-Origin

...le: public class HttpHeaderAttribute : ActionFilterAttribute { public string Name { get; set; } public string Value { get; set; } public HttpHeaderAttribute(string name, string value) { Name = name; Value = value; } public override void OnResultExecuted(Resu...
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How to remove files that are listed in the .gitignore but still on the repository?

... You can remove them from the repository manually: git rm --cached file1 file2 dir/file3 Or, if you have a lot of files: git rm --cached `git ls-files -i --exclude-from=.gitignore` But this doesn't seem to work in Git Bash on Windows. It produces an error messag...
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How to tell git to ignore individual lines, i.e. gitignore for specific lines of code [duplicate]

...o be filtered: *.rb filter=gitignore, i.e. run filter named gitignore on all *.rb files Define the gitignore filter in your gitconfig: $ git config --global filter.gitignore.clean "sed '/#gitignore$/d'", i.e. delete these lines $ git config --global filter.gitignore.smudge cat, i.e. do nothing ...
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Could I change my name and surname in all previous commits?

I would like to change my name, surname and email in my all commits, is it possible? 6 Answers ...
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How do I detect the Python version at runtime? [duplicate]

... FYI this works, but the python_version function returns a string (e.g. on my system it prints '3.6.1'). If you're checking the version in an if statement like the OP is, Chris' answer makes much more sense, as you don't have to go through the clunky process of searching the string f...
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Why doesn't Ruby support i++ or i--​ (increment/decrement operators)?

... @LuísSoares a.capitalize! does not reassign a, it will mutate the string that a refers to. Other references to the same string will be affected and if you do a.object_id before and after the call to capitalize, you'll get the same result (neither of which would be true if you did a = a.capi...
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Best practices for reducing Garbage Collector activity in Javascript

...an object via new or via literal syntax [...], or {}. When you concatenate strings. When you enter a scope that contains function declarations. When you perform an action that triggers an exception. When you evaluate a function expression: (function (...) { ... }). When you perform an operation that...
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How to make asynchronous HTTP requests in PHP

... $val); $post_params[] = $key.'='.urlencode($val); } $post_string = implode('&', $post_params); $parts=parse_url($url); $fp = fsockopen($parts['host'], isset($parts['port'])?$parts['port']:80, $errno, $errstr, 30); $out = "POST ".$parts['path']." HT...
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Monad in plain English? (For the OOP programmer with no FP background)

...rable<T>. It is an amplifier of types. It lets you take a type, say, string, and add a new capability to that type, namely, that you can now make a sequence of strings out of any number of single strings. What are the "certain rules"? Briefly, that there is a sensible way for functions on the...
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Titlecasing a string with exceptions

Is there a standard way in Python to titlecase a string (i.e. words start with uppercase characters, all remaining cased characters have lowercase) but leaving articles like and , in , and of lowercased? ...