Do any web browsers garbage collect removed dom elements? (as opposed to Javascript objects)

If one made a web application that never refreshed a page but was built completely from the first page plus Javascript requests, thereby creating and destroying elements as required, would any of the browsers reuse the memory used by the obsolete dom elements?

Is this planned in any browsers yet?

I'm thinking that full blown extJS apps would be very sensitive to this kind of memory leakage.

Is there any truly effective re-use strategy to mitigate this problem?

I'm not referring to Javascript object garbage collection here, only removed DOM elements, but I'm not sure if that is essentially the same thing in the end.


It looks like Chrome does this:

Memory usage:

  1. Start: 45K
  2. After adding: 60K
  3. After removing: 49K

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