README, and automatic fullscreen

README.md

+# Pipic
+
+Pipic is software for making slideshows. The idea is that you have one server,
+running a pipic server, and have as many clients as necessary which just
+display the website hosted by the pipic server.
+
+## Usage
+
+1. Copy `conf.json.example` to `conf.json`, and change the desired preferences.
+   You may for example want to change `slides` to something other than
+   'exampleSlides'.
+2. Run `node server.js`.
+3. Point your clients to the site hosted by the pipic server.
+
+## Automatic fullscreen
+
+There are multiple ways for a client to automatically display the website in
+fullscreen.
+
+### Firefox
+
+The easiest way for Firefox is to go to about:config and change
+`full-screen-api.allow-trusted-requests-only` to false, and the website will
+automatically fullscreen itself. You could also change
+`full-screen-api.warning.timeout` to 0 to disable the warning telling you the
+website is fullscreen.
+
+### Chrome/Chromium
+
+You could start Chrome/Chromium with the `--start-fullscreen` flag, and the
+browser will automatically start in fullscreen mode. For some reason, Chrome
+seems to have issues when started from a plain X session without a window
+manager though, so I would advise using Firefox.

index.html

 		<script src="https://cdnjs.cloudflare.com/ajax/libs/fetch/1.0.0/fetch.min.js"></script>
 
 <script>
+
+	(function fullscreen() {
+		var elem = document.body;
+		var rFS = elem.requestFullScreen ||
+			elem.msRequestFullScreen ||
+			elem.mozRequestFullScreen ||
+			elem.webkitRequestFullScreen;
+
+		if (rFS)
+			rFS.call(elem);
+	})();
+
 	var overlay = () => document.querySelector("#_overlay");
 	var main = () => document.querySelector("#_main");
 
 	function await() {
 		// Wait for the next slide change, then update again
 		console.log("fetching");
-		fetch("/await")
+		fetch("/await", { method: "POST" })
 			.then(response => response.json())
 			.then(obj => {
 				console.log("fetched", JSON.stringify(obj));