I try to make my website load in fullscreen automatically, without user input. However, this does not seem to be possible with the fullscreen API via Javascript. Simulating a keypress (F11) is also not allowed because of security reasons.
I've read in another question, that I could fork an existing browser and therefore allow using the fullscreen API automatically (and possibly simulating keypresses as well..?).
Since I only need this for a private project on my own machine this sounds feasible to me, but I don't have a clue where to start. I've tried looking in the Chromium Sourcecode for their implementation of the fullscreen API, to no real success.
So: Is what I described possible to achieve with browser-side modifications? Where can I start looking (or find out what to look for) in let's say Chromium (or whatever open source browser)? Is this likely to be accomplished without years of experience in browser technologies? Or are there other more suitable places where I can ask? Thanks alot
/edit To clarify, just starting the website/browser in fullscreen mode (if even possible reliably) probably won't fix my problem either, because I need to switch to non-fullscreen sometimes as well.