memory leaks on a cached static render functions #7184
Description
Version
2.5.9
Reproduction link
https://jsfiddle.net/pufjfwm8/2/
Steps to reproduce
(Chrome 60.0.3112.101)
- take the heap memory snapshot in chrome devtool
- click on "to big" link (go to the route with a lot components)
- click on "to small" link (return back to the small component)
- collect garbage in devtool
- take the second snapshot
- compate snapshots
- heap increase and vue cache div element ("I am big component!"). This element have the prop "context",
that reference to "zombie" component. All zombie-components alive, but route have changed.
if you will repeat this actions, memory will leak.
If you remove "I am big component!"-div, memory does'nt leak.
What is expected?
cached nodes should not contain references to destroyed components
What is actually happening?
We have memory leak (1-2 GB) with large lists of components like this.
Memory leaks:
https://imgur.com/fnaC1vS
Memory does'nt leak:
https://imgur.com/WPiCZ0A