Comment 4 for bug 1552341

To clarify the actual benefit, on a first run before the cache is created it was seen to save as much as 1 to 1.5 secs on some apps, which is equivalent to what the cache provides. So providing this would improve the overall experience, and I believe it would allow us to stop using the cache which occasionally causes app starting issues, for example when it somehow becomes corrupted.(see bug #1560020)