htmlextra reports are not displayed correctly in jenkins

[Irian81]

I'm using a newman based integration testing in my jenkins builds and in the process I save and publish the generated htmlextra report in the jenkins project itself as an HTML report (using the Publish HTML reports feature).

I have no idea why but the report generated from newman always shows completely mangled up and almost unreadable; if I save the file and open it stand-alone it shows up correctly, other html files generated by JACOCO for example published in the same way shows up fine.

Most probably there is an incompatibility with the way jenkins publishes the report but I have unfortunately no time to get to the bottom of this, has anyone tried to do the same and knows how this problem can be fixed??