Cross domain circulation interface

Cross domain circulation interface(PlatON)

The cross domain problem of the circulation interface refers to the problem of data exchange between websites or applications in multiple different domains, which is caused by the browser’s same origin policy limitation, resulting in the inability to transmit data normally. This issue is quite common when it comes to API interface calls and web services.

  1. Reasons for cross domain issues:
    *Restriction of browser’s same origin policy: The same origin policy is a mechanism adopted by browsers to protect user privacy and security. It restricts the interaction between pages or applications from different sources (such as different domain names, port numbers, etc.).
    *CORS (Cross Origin Resource Sharing) specification: The CORS specification is a standard for addressing cross domain issues. It allows server configuration to allow requests from different sources to access certain resources.
  2. Manifestations of cross domain issues in circulation interfaces:
    *Request Denied: When a cross domain request is detected by the browser, it will be rejected for loading or execution.
    *Error response: The server may return a cross domain error response, informing the client that the request has been rejected or cannot be processed.
  3. Solution:
    *Using a proxy server: Configure the proxy server to allow cross domain requests and forward them to the target server. This can handle cross domain issues on the proxy server, avoiding direct cross domain restrictions between the client and the target server.
    *JSONP (JSON with Padding): JSONP is a script based cross domain solution that encapsulates JSON data into strings for transmission by adding special characters as boundaries in script tags. It has certain safety risks and is not recommended for use in production environments.
    *CORS configuration: Configure CORS specifications on the target server to allow requests from specific sources to access certain resources. This requires server-side developers to configure the HTTP response header.
    *Using secure connections (HTTPS): Using secure connections can solve some cross domain problems. Due to the default permission for cross domain requests in secure connections, using HTTPS can bypass the same origin policy restriction.
  4. Precautions:
    *Cross domain issues may vary depending on browser version and configuration, and it is recommended to test and verify them in a production environment.
    *When using a proxy server or CORS configuration, ensure compliance with relevant specifications and standards to avoid violating the website’s terms of use and protocols.
    *For sensitive data or important functions, it is recommended to conduct sufficient testing and validation in the production environment to ensure that solutions to cross domain problems meet expected results and security requirements.

The cross domain problem of flow interfaces is a common problem when exchanging data between websites or applications from multiple different domains. To solve this problem, it is necessary to comprehensively consider multiple solutions and choose the appropriate one based on the actual situation. In practical applications, it is recommended to choose suitable solutions based on specific situations and pay attention to relevant precautions to ensure the security and stability of data transmission.

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