I have a question regarding DataMiner’s default behavior of automatically adding two headers, specifically, User-Agent: DataMiner/1.0 and Connection: Keep-Alive (Header element | DataMiner Docs). Is there a way to remove the User-Agent header, as it is causing my query to fail?
I used the Generic HTTP Query driver (https://docs.dataminer.services/connector/doc/Generic_HTTP_Query.html) for testing, and as you can see in the image below, the addition of the User-Agent header causes the HTTP request to fail. In the GetAccessTokenWithDataMiner request shown in the picture, the response body is empty, while the GetAccessToken request returns a response body containing the access token.
Is there any workaround or alternative solution to prevent DataMiner from sending the header that is causing issues in my use-case?
What have I tried?
1. I sent the same request as GetAccessTokenWithDataMinerHeader from the same machine via Bruno, and it didn't fail.
Request:
POST https://...
Content-Type: application/x-www-form-urlencoded
User-Agent: DataMiner/1.0
data "grant_type=client_credentials&client_id=myClientId&client_secret=myClientSecret"
Response:
< 200 OK
< server: nginx
< date: Fri, 21 Mar 2025 16:44:20 GMT
< content-type: application/json
< content-length: 941
< connection: keep-alive
< strict-transport-security: max-age=31536000; includeSubDomains
...
2. Testing via Command Prompt with cURL from the same machine, and it didn't fail:
Request:
curl -X POST "https://..." \
-H "Content-Type: application/x-www-form-urlencoded" \
-H "User-Agent: DataMiner/1.0" \
-d "grant_type=client_credentials&client_id=myClientId&client_secret=myClientSecret"
Response:
{
"token_type": "Bearer",
"access_token": "...",
...
}
3. Overriding the Header in Generic HTTP Query:
I tried sending the same request as GetAccessTokenWithDataMinerHeader and overriding the User-Agent header with multiple different strings. This resulted in a 498 Generic Client Error. The Generic HTTP Query doesn't allow empty strings as value of the headers.
4. Overriding the Header with Empty Values:
I also attempted to override the header in the protocol with multiple values including empty strings, but this resulted in a 403 Forbidden response.
Note: In the captured Wireshark session of the driver I am working on (not the Generic HTTP Query Tool), the GetAccessToken query returned a status of 403 Forbidden, while the response body included the message:
"Access control configuration prevents your request from being allowed at this time. Please contact your service provider if you feel this is incorrect."
Hi,
To make sure that other people are aware:
An internal investigation was done behind the scenes as part of a related task, and it turned out the issue was caused by a proxy configuration, not the User-Agent
header or DataMiner.