Offline Storage, Tracking, Debugging, and Optimization

This chapter is focused on the increasingly important offline support for ads on mobile and tablet devices, on mandatory tracking, and on the tedious and often very time-consuming process of debugging in a browser and on a device. Offline support is becoming a requirement for many web apps, and advertising is quickly following suit. In this chapter, I’ll review how to handle offline events, detect when a user comes back online, and even discuss APIs that will detect when a user has a poor network connection. I’ll cover how to cache assets to client browsers and devices using HTML5’s ...

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