Memory leak caused by default initialisation of xlib

[lebnd]

Hello,

I managed to find a memory leak caused by "longjohn", a dependency loaded by default through xlib.

What fixed it was configuring xlib in production mode:

global.__xlibInitArgs = Object.assign({ envLevel: 'PROD', logLevel: 'ERROR' }, global.__xlibInitArgs);

I suggest to modify the phanthomjscloud initialisation of xlib to also contain the two parameters above.

[jasonswearingen]

thank you for this. I will work on the required change. it is a little difficult because internally we are using a new version of xlib but that is not yet reflected in the public version of phantomjscloud-node. So it may be easier to just update to the newset xlib (and make sure the problem doesn't occur) than it is to fix this.

[jasonswearingen]

This is scheduled to get fixed during the coming week.