Server-side rendering for Ember.js applications, enabling HTML delivery without JavaScript download.
Ember FastBoot is a server-side rendering solution for Ember.js applications. It renders Ember apps on the server and serves static HTML to browsers, improving performance and SEO without requiring clients to download JavaScript assets. It integrates with the Ember ecosystem, though some client-side code may need adaptation for server execution.
Ember.js developers building applications that require improved initial load performance, SEO optimization, or accessibility for clients without JavaScript. It is particularly suited for teams already invested in the Ember framework.
Developers choose Ember FastBoot for its seamless integration with Ember.js, offering features like the Shoebox for state transfer, rehydration support for faster startup, and built-in security with Node package whitelisting. It provides server-side rendering tailored to Ember's conventions without requiring a full rewrite.
Server-side rendering for Ember.js apps
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Tightly integrated with Ember.js conventions and addons, allowing existing Ember projects to adopt SSR without a full rewrite, as emphasized in its value proposition.
Features the Shoebox to pass server-fetched data to the client, avoiding duplicate API calls and improving performance, which is highlighted as a key benefit in the README.
Includes Node package whitelisting to restrict server-side dependencies, reducing vulnerability risks, as detailed in the installation and usage sections.
Allows reusing server-rendered DOM in the browser for faster startup times, though it requires specific environment flags and compatibility checks per the README.
Provides hooks like updateFastBootManifest for addons to customize assets and manifests, ensuring server-side compatibility as described in the build hooks section.
Many Ember addons and application code need modifications for server-side execution, as the README warns about browser-specific APIs and incompatible dependencies.
Introduces double build times and lacks incremental builds, slowing development, which is noted in the troubleshooting and configuration sections.
jQuery and lifecycle hooks like didInsertElement are not supported in FastBoot, restricting UI interactions and requiring alternative implementations per known limitations.
Prototype extensions do not work across Node realms, necessitating disabling these features in Ember apps for compatibility, as mentioned in the known limitations.