Now getting "DataSource.Error: The server committed a protocol violation. Section=ResponseHeader"

[graemejohnson]

A query that involves a call to a REST API and which has previously been working, has now stopped working...

It's failing with a "DataSource.Error: The server committed a protocol violation. Section=ResponseHeader" error...

I'm not sure what do to 

[v-cherch-msft · Accepted solution]

Hi @graemejohnson 

Please check if below similar post could help.

https://community.powerbi.com/t5/Desktop/DataSource-Error-The-server-committed-a-protocol-violation/...

Regards,

[graemejohnson]

Thanks @v-cherch-msft  - I looked into this possibility with our IT guys and they confirmed that Incapsula is adding some tracking content to the response returned from the REST call - and it's this that is causing the issue.    I have asked that the tracking content is removed so will hopefully soon start to get a clean payload coming through 🙂

Your steer was much appreciated.