Options authorization. Authentication Options
Sep 12, In cross origin requests, the authorization header can be sent in two ways: either by the browser or specified along with the request.
This options authorization explains which CORS headers you need for each.
There are several types of authentication that use this header, and some are supported by browsers, such as basic authentication.
This will trigger the browser to ask the user for credentials.
The browser will then perform the same request, but include an Authorization header with the entered credentials. In contrast, some applications use the Authorization header without any intervening from the browser.
Libraries and samples
Cross origin access with credentials If you want to send an Authorization header along with a request to another site, that site has to notify the browser that that is permitted.
However, there are some use cases for cross-site access.
These are response headers, so the application that handles the request has to give its OK that the response is used by another application. XHR requests with Authorization header When performing a cross-origin request which includes authorization header, the server needs to respond with approval of the use of credentials. How this is done differs depending on whether the Authorization header is set by the browser or from your application.
By the browser Browsers support HTTP basic authentication as described above, where the browser asks for a username and password and sends it with every subsequent request.
To use this, you need to enable credentials on your request. This will send cookies, client-side options authorization, and basic authentication information in the Authorization header along with the request.
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To do this, you need three things: On the client, specify that you want to include credentials. Set Request.
On the server, respond with Access-Control-Allow-Credentials: true. This lets the client know that authenticated requests are permitted.
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- If prompted, select a project, or create a new one.
- Authorization header not sent on preflight OPTIONS request
It works just like any other header. One of these if the header Access-Control-Allow-Credentials, which allows authentication information such as cookies, authorization headers and client certificates in a cross-origin request. Another response header that can be used is Access-Control-Allow-Headers, which can be used to whitelist the Authorization header.
- Conditional option
- Launch Apollo Studio Authentication Unless all of the data you are loading is completely public, your app has some sort of users, accounts and permissions systems.
- Authentication options - Authorization Service
You need three things: On the client, specify the Authorization header you want to include in the request. On the server, respond with Access-Control-Allow-Origin header, containing the origin that performs the request, or a wildcard.
On the server, respond with Access-Control-Allow-Headers: Authorization to inform the browser that the Authorization header in the request is permitted.
Test it out On the demo page you can perform cross-origin requests using different request and response headers. Conclusion If you specify your own authorization header, it works just like any other header. If you want the browser to send along the authorization header, it works like a authenticated request.