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More and more images go missing. Can the cooked HTML be rebuilt?

I'm very confused by the source of this question. I just pulled it up to link to it, and saw that the imgur was broken:

imgur broken fhc

OK, I'm sure I can just fix that by editing the question I thought. So I clicked "Edit", and mysteriously the image was correct:

image correct on edit fhc

But that's not what the actual HTML source code of the question shows!

source code fhc!!! OMG WTF BBQ!!!!

I thought maybe the system is smart enough to /i\.imgur\.com/i\.stack\.imgur\.com/g on it's own to correct older images on edit, but if that's what is happening, then why does the edit history show me that Robert corrected it himself?

FREEHAND INTERROBANG!!!!!!!! FTMFW!!!!!

I am confused, explanations?

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marked as duplicate by Sathya, The Unhandled Exception, kiamlaluno, jonsca, Chris Frederick Oct 29 '11 at 5:24

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

    
Also, I have not edited this question at all yet so you can see what I mean. –  The Unhandled Exception Oct 28 '11 at 13:04
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This, maybe? –  Yi Jiang Oct 28 '11 at 13:04
    
@YiJiang's独角兽 Related definitely. But if it was retroactively replaced why is it not correct in the HTML source? –  The Unhandled Exception Oct 28 '11 at 13:06
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Actually, it's this –  Sathya Oct 28 '11 at 13:39
    
You're correct @Sathya -- my question should be closed as a duplicate. –  The Unhandled Exception Oct 28 '11 at 13:41
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But, it is Friday, a good freehand Interrobang question needed to be posted anyway... lmao –  The Unhandled Exception Oct 28 '11 at 13:42
    
LOL @TheUnhandledException freehands ftw! –  Sathya Oct 28 '11 at 14:01

1 Answer 1

up vote 6 down vote accepted

History is written by the victors, and sometimes those victors go back in time to rewrite that history, Terminator 2 style.

Since the rendered HTML view of the post (but not its revisions) is stored at the time of modification, it's possible for that snapshot of the past to be out of touch with this strange new reality. Of course, you could force the system to to a batch rerender, but that's kind of costly, so in cases like this it's easier to just perform a dummy edit on the post.

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+1 for the Terminator 2 reference! –  The Unhandled Exception Oct 28 '11 at 13:43
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I wonder how costly this really is. True, it's almost a year of posts that might need fixing. But when saving a single post the pre-cooking of the HTML seems to be instantaneous. I also wonder if the system will render on the fly, if it cannot find the cached HTML. If that would be true, then the only human effort would be to clear the caches? –  Arjan Oct 30 '11 at 18:51
    
@Arjan Hmm, that's a good point. If the on-demand rerendering would work, that seems like a reasonable option either way. –  Tim Stone Oct 31 '11 at 14:59

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