Troubleshooting
Problem
There is an issue with case sensitive HTTP CORS (Cross-Origin Resource Sharing) headers.
For example, if Integration Server has the following set:
watt.server.cors.supportedHeaders=Content-Type,Accept,Authorization,Content-Length,From,Accept-Language,Date
A client sends an OPTIONS request with "Access-Control-Request-Headers", and if the case of the headers do not exactly match those in the watt.server.cors.supportedHeaders, then Integration Server response with HTTP status code 403 "Header not supported".
According to the standard, HTTP Headers should be case-insensitive.
Document Location
Worldwide
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Document Information
Modified date:
20 March 2025
UID
ibm17225856