cors

CORS cookie credentials from mobile WebView loaded locally with file://

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I realize this question is old, but I figured I’d throw in on it anyhow. In the case of CORS requests, the browser preflights them. What this means is – in spite of whatever $.ajax() method you are using, an OPTIONS request is sent to the server. What this preflighted OPTIONS request is actually doing … Read more

Access-Control-Allow-Origin and Angular.js $http

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I’m new to AngularJS and I came across this CORS problem, almost lost my mind! Luckily i found a way to fix this. So here it goes…. My problem was, when I use AngularJS $resource in sending API requests I’m getting this error message XMLHttpRequest cannot load http://website.com. No ‘Access-Control-Allow-Origin’ header is present on the … Read more

Way to debug CORS errors

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Which version of Chrome are you using? The latest versions have become much better at reporting CORS issues. For example, I am using Chrome version “32.0.1700.14 beta”, and when I visit this page, I get the following error in my console: Request header field X-Foo is not allowed by Access-Control-Allow-Headers. This information is only available … Read more

How to enable cors in ASP.NET Core 6.0 Web API project?

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Add service builder.Services.AddCors and app add app.UseCors(“corsapp”); replace builder.WithOrigins(“*”) with builder.WithOrigins(“http://localhost:800”, “https://misite.com”); check documentation var builder = WebApplication.CreateBuilder(args); // Add services to the container. builder.Services.AddControllers(); // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle builder.Services.AddEndpointsApiExplorer(); builder.Services.AddSwaggerGen(); //services cors builder.Services.AddCors(p => p.AddPolicy(“corsapp”, builder => { builder.WithOrigins(“*”).AllowAnyMethod().AllowAnyHeader(); })); var app = builder.Build(); if (app.Environment.IsDevelopment()) { app.UseSwagger(); app.UseSwaggerUI(); } … Read more

Will CORS policy prevent resource access from non-browser requests?

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However, does this prevent Http requests from a CURL, or other native applications/web-servers (ie. a request written and run via PHP) from successfully retrieving data from that resource? No, CORS config won’t prevent non-browser stuff from successfully retrieving your resources. The same-origin policy is enforced only by browsers. It’s not enforced by servers. (And CORS … Read more

How to allow access via CORS to multiple domains within nginx

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The W3 spec on Access-Control-Allow-Origin explains that multiple origins can be specified by a space-separated list. In practice, though, this is unlikely to be interpreted correctly by current implementations in browsers (eg fails for Firefox 45 at time of writing); summed up by this comment. To implement what you need, then the following nginx snippet … Read more

Html works but JS Image loading cause CORS error

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I try to found solution my self (JS ES6) but find only-partially. We are able to load img from no-CORS support src into canvas but browser switch cavnas into ‘taint mode’ which not allow us to call toDataURL (and any other access to content). function loadImgAsBase64(url, callback) { let canvas = document.createElement(‘CANVAS’); let img = … Read more

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