I’m interested in the reason why you have chosen to install such an outdated version of ownCloud? If you browse on:
you can see that ownCloud 10.0.7 is the latest available version. I think it doesn’t make any sense to install anything else then this version on a fresh setup.
i did the following search:
https://central.owncloud.org/search?q=%22No%20basic%20authentication%20headers%20were%20found%22
and found:
It seems to be that this is caused by some insufficient server configuration.