I forward my personal domain http://xilagliu.org to http://martinberger.github.io. All links work fine, except for links to Google. See e.g. http://xilagliu.org/yyy.html
If I click on any of the google links, nothing happens, all other links work fine. I've tried this with various browswers on several machines. If I go to the original page http://martinberger.github.io/yyy.html all links work fine. If I open the google links in a new tab, that also works fine.
Does Github somehow block direct links to Google domains? What can I do to stop this behaviour?