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Origin is not allowed by Access-Control-Allow-Origin
... server must specify a domain, and cannot use wild carding.
You can read more about withCredentials here
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C# switch statement limitations - why?
...not accustomed to having such freedoms, they do not demand them.
Another, more valid, reason is that the language complexity would increase:
First of all, should the objects be compared with .Equals() or with the == operator? Both are valid in some cases. Should we introduce new syntax to do this?...
Portable way to get file size (in bytes) in shell?
... OK on both Linux and Solaris. You can try it with wc -c < /usr/bin/wc. Moreover, POSIX utilities are guaranteed to handle binary files, unless specified otherwise explicitly.
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Add params to given URL in Python
...hen if you want to replace exiting query params using dict, takes a little more.
– ombre42
Feb 28 '17 at 16:14
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How to get ELMAH to work with ASP.NET MVC [HandleError] attribute?
...vailable, such as testing. As a result, you will want code that is that is more defensive (at the cost of being slightly longer):
using System.Web;
using System.Web.Mvc;
using Elmah;
public class HandleErrorAttribute : System.Web.Mvc.HandleErrorAttribute
{
public override void OnException(Exce...
What is the theoretical maximum number of open TCP connections that a modern Linux box can have
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A single listening port can accept more than one connection simultaneously.
There is a '64K' limit that is often cited, but that is per client per server port, and needs clarifying.
Each TCP/IP packet has basically four fields for addressing. These are:
source...
What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?
...correct' way is to get all the wheels, ordered by CarId (1 select), and if more details than the CarId are required, make a second query for all cars (2 queries total). Printing things out is now optimal, and no indexes or secondary storage were required (you can iterate over results, no need to dow...
Check if a temporary table exists and delete if it exists before creating a temporary table
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@deutschZuid it's more accurate to say that double dot is the default schema of the user, which is typically dbo (which isn't a great idea, making dbo the default schema for users but that's usually how it goes)
– jcollum...
How to pass command line arguments to a rake task
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C# 4.0 optional out/ref arguments
...y not allowed and I think it makes a very good sense.
However, to add some more details, here is a quote from the C# 4.0 Specification, section 21.1:
Formal parameters of constructors, methods, indexers and delegate types can be declared optional:
fixed-parameter:
attributesopt p...