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CORS not working after I copied the instance

By : codepatrol
Date : October 14 2020, 02:21 PM
Hope that helps I have a running instance with tomcat 7 and java app. I wanted to make a copy of the instance. in Amazon, I clicked "create image", and launched a new instance from it. after that, i tried to work with the new instance. when i make simple requests it works, but when i try from a browser i get CORS error: , Compare the init parameter names that you used
code :

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Are instance methods copied for each new instance?

By : Frank De la Torre
Date : March 29 2020, 07:55 AM
wish of those help If by "copy instance constructors" you are asking whether code for these methods is generated per-instance, the answer is no. All instances of a type share the same code for their methods, properties and constructors.

Asp.Net WebApi2 Enable CORS not working with AspNet.WebApi.Cors 5.2.3

By : Xndingo
Date : March 29 2020, 07:55 AM
should help you out I've created a pared-down demo project for you.
Source: https://github.com/bigfont/webapi-cors Api Link: https://cors-webapi.azurewebsites.net/api/values
code :
public class WebApiApplication : System.Web.HttpApplication
    protected void Application_Start()
public static class WebApiConfig
    public static void Register(HttpConfiguration config)

    private static void AddRoutes(HttpConfiguration config)
            name: "Default",
            routeTemplate: "api/{controller}/"

    private static void EnableCrossSiteRequests(HttpConfiguration config)
        var cors = new EnableCorsAttribute(
            origins: "*", 
            headers: "*", 
            methods: "*");
public class ValuesController : ApiController
    // GET api/values
    public IEnumerable<string> Get()
        return new string[] { 
            "This is a CORS response.", 
            "It works from any origin." 

    // GET api/values/another
    [EnableCors(origins:"http://www.bigfont.ca", headers:"*", methods: "*")]
    public IEnumerable<string> Another()
        return new string[] { 
            "This is a CORS response. ", 
            "It works only from two origins: ",
            "1. www.bigfont.ca ",
            "2. the same origin." 
<?xml version="1.0" encoding="utf-8"?>
var url = "https://cors-webapi.azurewebsites.net/api/values"

$.get(url, function(data) {
  console.log("We expect this to succeed.");

var url = "https://cors-webapi.azurewebsites.net/api/values/another"

$.get(url, function(data) {
}).fail(function(xhr, status, text) {
  console.log("We expect this to fail.");
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

Swift memory address of outside instance of inout parameter same as copied instance

By : Joachim Sejr
Date : March 29 2020, 07:55 AM
this will help What's happening is that you're always printing the address of the copy variable inside the printAddress() function. You're not printing the address of the argument you passed in, even though that is what you intended.
The address of the copy variable is always some constant fixed offset past the stack pointer that is current when printAddress() is entered, but the stack pointer changes depending on how deeply nested your code is when printAddress() is called.
code :
func printAddress<T>(anyObj: inout T, message: String = "") {
    withUnsafePointer(to: &anyObj) {
        print("\(message) value \(anyObj) has memory address of: \($0)")

copied jquery-ajax - why 403? [CORS]

By : samy
Date : March 29 2020, 07:55 AM
around this issue You are hitting wrong URL:
The URL should be https://www.immowelt.de/mvcroot/search/GetSuggestionList
code :
        type: "POST",
        url: "https://www.immowelt.de/mvcroot/search/GetSuggestionList",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        data: '{ "inputText": "' + "M" + '", "limit": 150, "geoID": "' + "108" + '", "region": "' + "0" + '" }',
        success: function(c) {
            if (c.response && c.response != ""){}               


Cannot get Signal R working due to cors issue - blocked by cors policy

By : user3320098
Date : March 29 2020, 07:55 AM
seems to work fine The problem is that you've defined origins both in IIS config and in code. You should only specify origins in IIS config if (1) you only trust a single origin for all applications on the server, or (2) you trust all origins for all applications on the server.
When specified in the config at server level, every http context in the pipeline has the Access-Control-Allow-Origin header added. Then, the WithOrigins() method appends another value to it.
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