Internet Explorer’s definition of the “same origin” differs to the other browsers. See the IE Exceptions section of the MDN documentation on the same-origin policy: Internet Explorer has two major exceptions when it comes to same origin policy: Trust Zones: if both domains are in highly trusted zone e.g, corporate domains, then the same origin … Read more
I had a a similar issue, only HEAD GET and POST were working for me. I found out that addCorsMappings has a default value for allowedMethods. This code works for me: import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.CorsRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; @Configuration public class MyConfiguration { @Bean public WebMvcConfigurer corsConfigurer() { return new WebMvcConfigurerAdapter() { … Read more
The documentation on this seems to imply that it allows multiple origins with a space separated list, but that’s not what it actually means. Here’s what I could gather as the most definitive answer to your question: the Access-Control-Allow-Origin header should be the same value as the Origin header as long as you want to … Read more
Your problem isn’t with jquery, it’s in how CORS works. Your beforeSend callback was probably working as expected… but browsers won’t send custom headers in preflight requests, no matter what. This is by design; the purpose of the preflight request is to determine what information the useragent (browser) is permitted to send beyond the “simple” … Read more
If you set it, then you can only set it to DENY, SAMEORIGIN, or ALLOW-FROM (a specific origin). Allowing all domains is the default. Don’t set the X-Frame-Options header at all if you want that. Note that the successor to X-Frame-Options — CSP’s frame-ancestors directive — accepts a list of allowed origins so you can … Read more
In my case I had to enable CORS-related feature on the server side: Access-Control-Expose-Headers: Content-Disposition This allows javascript on the browser side to read this header. In case of node.js + express + cors on the server side it may looks like this: app.use(cors({ origin: ‘http://localhost:8080’, credentials: true, exposedHeaders: [‘Content-Disposition’] })) So I can see … Read more
To workaround the CORS issue with Apollo you have to pass the no-cors option to the underlying fetch. import ApolloClient from “apollo-boost”; const client = new ApolloClient({ uri: “your client uri goes here”, fetchOptions: { mode: ‘no-cors’, }, }); This is not a specific Apollo problem, rather a configuration that is meant to be tackled … Read more
Create a .NET 4.5 MVC project, install nuget package “Microsoft ASP.NET Web API [version] Cross-Origin Support” (search for “cors” and it will be on 1st or 2nd place in list). That’s it. P.S. If you encounter errors try to install “Microsoft ASP.NET Web API [version]” package too (search for “WebApi”).
If you are just interested in the use of Access-Control-Allow-Origin:* You can do that with this .htaccess file at the site root. Header set Access-Control-Allow-Origin “*” Some useful information here: http://enable-cors.org/server_apache.html
The notes on the new Cors features are very light, but I was able to get it working in my solution by looking at the new classes and methods. My Web API startup.cs looks like this. You can see how you can construct your origins and policies her by using the new CorsPolicy class. And … Read more