HTML ETags and Github Pages

Question

I am taking a course at Udacity and we are learning about the caching system that the ETags provide:

• https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/http-caching

I am using GitHub pages, and from an answer in the forums:

• http://forums.udacity.com/questions/100195399/optimized-portfolios/100196340

I have the distinct idea that I cannot use ETags to optimize my page's load speed.

Is this true? If not, how can I do it? I am completely lost here and would appreciate any possible help!

Answer 1

I sent and e-mail to GitHub's support and this is still not possible. The answer was clear and concise:

This isn't possible, however I'll give this a +1 on our internal Feature Request List. We can't promise if we may add something like this, however your feedback is appreciated.

Special thanks to James Dennes for the quick answer.