cross-origin | Web 跨域解决方案 JSONP CORS PostMessage | Runtime Evironment library

The working query parameter for passing UD token is actually "auth" and not "access_token" as in the documentation.

Let's start off by saying what serving the pages with these headers means.

If you have ever built an API with Express.js for example, you'll be familiar with this. Essentially, it means that when the user makes a GET request to see the web page, you will have to send some additional information in the form of HTTP headers.

Specifically, the first header prevents your page from loading any cross-origin resources that don't explicitly grant permission. The second one means that you can't share a browsing context group with any cross-origin documents. Both of these are used as safety measures to prevent cross-origin attacks. Even though you may not be requesting anything, you have to apply them.

Now onto your problem, I would recommend installing the Chrome extension CORS. I don't know exactly how it works, but I have used it in the past and it will be a temporary solution. I skimmed through the tutorial you're following and I didn't see a server setup (as in Express.js/Node's http for instance). If you had any of these you could pass the headers as arguments to the servers.

To check if the CORS settings are working as intended, add the following code to your app:

You have COEP enabled in the client:

If your servers are on different URLs and/or ports, you need to give Axios the full URL, e.g. localhost:8080/home. At the moment, Axios is trying to get localhost:3000/home, which is on the Vue side, not the API side.

This is not a bug. It is, however, an ongoing issue for many others (see the discussion here). As per the documentation:

Cypress detected a cross-origin error happened on page load

This error means that your application navigated to a superdomain that Cypress was not bound to. Initially when you cy.visit(), Cypress changes the browser's URL to match the url passed to cy.visit(). This enables Cypress to communicate with your application to bypass all same-origin security policies among other things. When your application navigates to a superdomain outside of the current origin-policy, Cypress is unable to communicate with it, and thus fails.

If you find yourself stuck and can't work around these issues you can set chromeWebSecurity to false in your configuration file (cypress.json by default) when running in Chrome family browsers (this setting will not work in other browsers). Before doing so you should really understand and read about the reasoning here.

{"chromeWebSecurity": false}

Also, as described here:

If you attempt to visit two different superdomains, Cypress will error. Visiting subdomains works fine. You can visit different superdomains in different tests, but not in the same test.

Thus, although you are visting a subdomain, you might want to consider the following, as described in the documentation, which is used for visiting different superdomains:

You can convert a link in this pattern:

There are two ways to solve this issue: first you may need to disable cors and csrf inside the config method of the class that extends WebSecurityConfigurerAdapter:

You need to specify that it's a digest:

The enableCors and { cors: true } options are for the HTTP server (express or fastify). The URL given showing the CORS error came from a socket.io connection. To enable CORS for socket.io you need to use the options in the @WebsocketGateway() decorator, like