This script worked great. Before using it, BACK just gave me the dreaded 'can't find passage "undefined" in history' error. Thank you!

However, I have had one problem. When I start a game with this script, Javascript pops up to complain, "Cannot read property 'interval' of undefined."

Any ideas on how to avoid this error message?

~ Richard

Hello. I've been playing around with the back/return macros and I found a few bugs, so I figured that I'd report them.

Also, just in case you were unaware, while not a bug, Firefox places a size limit of 640k on the serialization of the state object passed to pushState()/replaceState(). So, stories that generate history states that large will cause this mod to fail.

---

History.prototype.display

This code:

if (hasPushState && this.history && this.history.length > 2) {
	window.history.pushState(this.history, document.title);
}

Should be something like this:

if (hasPushState && this.history) {
	if (this.history.length == 2 && window.history.state === null) {
		window.history.replaceState(this.history, document.title);
	} else {
		window.history.pushState(this.history, document.title);
	}
}

---

This code has two this.hash = this.save() statements in the same block, one of them is redundant:

if (a != "offscreen") {
	document.title = tale.title + ": " + c.title;
	this.hash = this.save();
	if (!hasPushState) {
		this.hash = this.save();
		window.location.hash = this.hash;
	}
	window.scroll(0, 0);
}

---

History.prototype.restart

This code:

window.location.reload();

Should be something like this:

if (hasPushState) {
	window.location.reload();
} else {
	window.location.hash = "";
}