The introduction of new digital experiences and content channels, and the underlying software evolution that made it possible, is one important factor that led to the interest in decoupling content management paradigms, as discussed in Chapter 1. Nonetheless, changes in the architecture of web pages—both in terms of what users demand from them and how they are composed—directly encouraged some to decouple Drupal from its front end to use JavaScript-driven front ends instead.
From Web 1.0 to Web 2.x
In the 1990s, during the Web 1.0 era, web pages tended to be flat files, ...
