How To Fix RSWADMDERR1377 - Content-Type needs to be 'text/html; charset=utf-8'

SAP Error Message - Details

• Message type: E = Error

• Message class: RSWADMDERR1 - Web Application Designer 4.0 Error Messages

• Message number: 377

• Message text: Content-Type needs to be 'text/html; charset=utf-8'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSWADMDERR1377 - Content-Type needs to be 'text/html; charset=utf-8' ?

  The SAP error message RSWADMDERR1377 indicates that there is an issue with the Content-Type header in the HTTP response. Specifically, it states that the Content-Type needs to be set to text/html; charset=utf-8. This error typically occurs in the context of web applications or services that are expected to return HTML content but are not configured correctly.
  Cause
  The error can be caused by several factors:
  
  Incorrect Content-Type Header: The application or service is returning a response with a Content-Type that does not match the expected value (text/html; charset=utf-8).
  Configuration Issues: There may be misconfigurations in the web server or application server settings that affect how responses are generated.
  Response Generation Logic: The logic in the application that generates the response may not be setting the Content-Type correctly.
  Middleware or Proxy Issues: If there is middleware or a proxy server involved, it may be altering the Content-Type header.
  
  Solution
  To resolve the error, you can take the following steps:
  
  
  Check Application Code: Review the code that generates the HTTP response. Ensure that the Content-Type header is explicitly set to text/html; charset=utf-8. In many programming languages, this can be done using a method or function that sets HTTP headers.
  Example in ABAP:
  SET HTTP_HEADER 'Content-Type' 'text/html; charset=utf-8'.
  
  
  Web Server Configuration: If you are using a web server (like Apache or Nginx), check the configuration files to ensure that the default Content-Type for HTML responses is set correctly.
  
  
  Check Middleware/Proxy Settings: If there is any middleware or proxy server in the architecture, verify that it is not modifying the Content-Type header in a way that causes this error.
  
  
  Testing: After making changes, test the application to ensure that the response now includes the correct Content-Type header. You can use tools like Postman or browser developer tools to inspect the HTTP response headers.
  
  
  Review Documentation: If you are using specific SAP modules or third-party libraries, consult their documentation for any specific requirements regarding Content-Type headers.
  
  
  Related Information
  
  HTTP Headers: Understanding HTTP headers and their significance is crucial for web development. The Content-Type header informs the client about the type of data being sent.
  Character Encoding: The charset=utf-8 part of the Content-Type specifies the character encoding used in the response. UTF-8 is a widely used encoding that supports a vast range of characters.
  SAP Notes: Check SAP Notes or the SAP Community for any known issues or patches related to this error message, as there may be specific fixes or updates available.
  
  By following these steps, you should be able to resolve the RSWADMDERR1377 error and ensure that your application returns the correct Content-Type in its HTTP responses.