File.toBytes causes Memory leak

[atlewee]

Every time you run File.toBytes, all of those bytes stays in memory forever. Even if never used.
Running this function on a 350MB file a couple of times will make the browser use gigabytes of RAM.

File.toString and File.toUrl does not have the same problem, those are garbage collected immidiatly
( I have tested Chrome and Firefox on Linux and get exactly the same results )

Possible solution:

Adding reader = null after it is used removes the problem on both Chrome and Firefox, with this line added I see no memory leak anymore.