Working with latest NW.js. It's been supported since NW.js v0.29.
rogerwang/nw-offscreen-tab
Offscreen rendering web pages with NW.js; Supports accelerated graphics and plugins etc.
JavaScript
Offscreen rendering web pages with NW.js; Supports accelerated graphics and plugins etc.
JavaScript
Working with latest NW.js. It's been supported since NW.js v0.29.