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From: Karl Dahlke <eklhad@comcast.net>
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Subject: [Edbrowse-dev] document.head.querySelector
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Well for starters, a.href = a.href; makes no sense to me.
What's the point of that?

Then my real question is, is a.protocol suppose to have side effects, not just a string.
Is it suppose to dip into a.href?

Object.defineProperty(A.prototype, "protocol", {
  get: function() {return this.href.protocol; },
  set: function(v) { this.href.protocol = v; }
});

If there are no such side effects then the code really doesn't make any sense.
You might have to dig into the behavior of the A tag to know for sure.

createWebSocketURL: function(url) {
var a;
if (url && !/^wss?:/i.test(url)) {
a = document.createElement("a");
a.href = url;
a.href = a.href;
a.protocol = a.protocol.replace("http", "ws");
return a.href;
} else {
return url;
}
},

Similar questions apply for img.src and iframe.src and form.action and other tags that have implicit urls.

Karl Dahlke