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CORS - What is the motivation behind introducing preflight requests?

...ary of the preflight mechanism. Yes these services could already be abused by a malicious or non-conforming user agent (and CORS does nothing to change this), but in a world with CORS the preflight mechanism provides an extra 'sanity check' so that clients and servers don't break because the underly...
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Accessing outside variable using anonymous function as params

...g. However I guess in the example above when use (&$result) is passed by reference it doesn't really matter? – Dimitry K Jun 19 '14 at 12:13 4 ...
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What breaking changes are introduced in C++11?

...hread_local Certain integer literals larger than can be represented by long could change from an unsigned integer type to signed long long. Valid C++ 2003 code that uses integer division rounds the result toward 0 or toward negative infinity, whereas C++0x always rounds the result towa...
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Format decimal for percentage values?

... Use the P format string. This will vary by culture: String.Format("Value: {0:P2}.", 0.8526) // formats as 85.26 % (varies by culture) share | improve this answer...
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HTTP error 403 in Python 3 Web Scraping

...gent': 'Mozilla/5.0'}) webpage = urlopen(req).read() This works for me. By the way, in your code you are missing the () after .read in the urlopen line, but I think that it's a typo. TIP: since this is exercise, choose a different, non restrictive site. Maybe they are blocking urllib for some re...
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Entity Framework Code First - Advantages and disadvantages of Fluent Api vs Data Annotations [closed

...ons anymore your last resort is to follow the default mapping conventions (by naming your properties according to those rules). Currently you cannot overwrite the conventions (only disable them; MS announced to give configuration options for the conventions in future EF releases). But if you don't w...
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What does Google Closure Library offer over jQuery? [closed]

... of tons of extensions and tutorial that jQuery has. However, being pushed by Google should ensure that support and reliability will be both pretty good. The current documentation and tutorial both seem really good, too. Features The features of Closure look decent, though, and its modular archite...
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How to drop columns by name in a data frame

... The setdiff proposal by @hadley is very good for long lists of names. – JASC Jan 11 '19 at 3:44 add a comment ...
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Switch to another Git tag

...nd commit them, and [discard those commits] without impacting any branches by performing another checkout". To retain any changes made, move them to a new branch: git checkout -b 1.1.4-jspooner You can get back to the master branch by using: git checkout master Note, as was mentioned in the f...
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Get login username in java

... Trying to get the username is by definition platform-specific. A JVM running on a single-user system might not have a username at all. – Chinmay Kanchi Feb 18 '10 at 16:58 ...