On 6/23/13 1:15 AM, Adam Barth wrote:
One tricky case here is what happens if you modify the srcdoc attribute:
Ah, indeed.
<iframe id="foo" srcdoc="aaa"></iframe>
<script>
[...] // Wait for the iframe to finish loading.
document.getElementById("foo").srcdoc = "bbb";
[...] // Wait for the iframe to finish loading.
document.getElementById("foo").contentWindow.document.body.innerHTML = "ccc";
</script>
What happens if you click the back button now?
I believe Gecko's upcoming implementation will show "aaa", but I haven't
tested to make sure.
That's because we navigated back
in the history to "about:srcdoc", which then looked at the srcdoc
property and saw "bbb" even though the srcdoc property had "aaa" when
that history entry was created.
Ah, we're just storing the srcdoc text in the history entry for srcdoc
loads, I think, precisely because you can't rely on the value of the
attribute.
-Boris
