Re: Firefox addin to replace 404 pages with archived pages from wayback machine

On 8/8/2016 11:58 PM, Melvin Carvalho wrote:
> Let's say a user has bookmarked a page for reference.  And that page has
> moved, but is yet archived.  I can see value for a user to see the material
> that she had seen before, from an archived version.

Your example is of a page you describe as "moved". Shouldn't the server 
return 301 for that? (Or possibly 303 - See other)?

> 4xx is indicated to the user agent, and I think that fundamentally in web arch the user is the ultimate curator of the content presented.

Yes, as I acknowledged in my post, but from a protocol point of view 404 
means "doesn't exist" (Not found). If there's a real need for "Not found, 
but please offer users an old version if available" I would think a new 40X 
code would be the more architecturally robust way of giving the server 
control.

Noah