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The 'Access-Control-Allow-Origin' header contains multiple values
...ader directive:
SetEnvIf Origin "^(https?://localhost|https://[a-z]+\.my\.base\.domain)$" ORIGIN_SUB_DOMAIN=$1
Header set Access-Control-Allow-Origin: "%{ORIGIN_SUB_DOMAIN}e" env=ORIGIN_SUB_DOMAIN
So in this example the response header will be added only if a request header Origin matches RegExp:...
Why does range(start, end) not include end?
...lements which equals len(range(0, 10)). Remember that programmers prefer 0-based indexing.
Also, consider the following common code snippet:
for i in range(len(li)):
pass
Could you see that if range() went up to exactly len(li) that this would be problematic? The programmer would need to exp...
How can I override Bootstrap CSS styles?
...should not effect the load time much since you are overriding parts of the base stylesheet.
Here are some best practices I personally follow:
Always load custom CSS after the base CSS file (not responsive).
Avoid using !important if possible. That can override some important styles from the base ...
Can I extend a class using more than 1 class in PHP?
...to actually exist and the behaviour is pretty much undefined when multiple base classes have a method with the same name. It will also mess up your editor's ability to give you hints.
– Erik
Apr 14 '15 at 13:51
...
Does Parallel.ForEach limit the number of active threads?
...threads are used. Parallel Extensions uses an appropriate number of cores, based on how many you physically have and how many are already busy. It allocates work for each core and then uses a technique called work stealing to let each thread process its own queue efficiently and only need to do any ...
Testing modules in rspec
...rom its host (do we say "host"?) class - If I don't already inherit from a base class or can't inject the new functionality into the inheritance tree then I think I'd be trying to minimise any such expectations that a module might have. My concern being that my design would start to develop some are...
Websocket API to replace REST API?
... not only in response to a client message. WebSockets implements a message-based protocol so clients can receive messages any time, and if they are waiting for a particular message, they can queue other messages for processing later, reorder queued messages, ignore pushed messages depending on app s...
Get the current first responder without using a private API
...rote a category on UIView, which I call on the UIWindow.
The following is based on that and should return the first responder.
@implementation UIView (FindFirstResponder)
- (id)findFirstResponder
{
if (self.isFirstResponder) {
return self;
}
for (UIView *subView in self...
Targeting position:sticky elements that are currently in a 'stuck' state
...s one that plagues just about any proposed selector that attempts to match based on a rendered or computed style: circular dependencies.
In the case of a :stuck pseudo-class, the simplest case of circularity would occur with the following CSS:
:stuck { position: static; /* Or anything other than s...
How to Generate unique file names in C#
...the same directory. Of course, the file name generation should be adjusted based on your specific needs.
– Mas
Jun 10 '13 at 12:27
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