Configuring JavaScript Streaming with the Performance & Delivery Rule Builder


The rule builder only works with the V2 config framework. If you see the text "configuration is not supported" on the Performance & Delivery Rules screen, you will need to have Instart migrate your configuration format. Please contact your account executive to initiate this migration. If you have the V1 configuration format, you will continue to have limited self-service control over your caching policy and over performance features HTML Streaming, JavaScript Streaming, Image Transcoding, and Brotli Compression until your configuration is updated. Refer to Delivery and Performance Configuration Overview for details.

This document describes how to use the Performance & Delivery Rules builder to create rules to control JavaScript Streaming. For general information about the Performance & Delivery Rules screen, see Configuring Performance & Delivery Rules in the Portal. For a detailed description of JavaScript Streaming, see What is JavaScript Streaming?

In the rule builder screen, select criteria you want to use to decide to turn JavaScript Streaming on or off. For example, here we set no criteria so that the action we choose will apply to all requests, then we choose JavaScript Streaming as the action:

For JavaScript Streaming, there is a default value of Inherited, meaning the value is not set explicitly and is derived from the global defaults or the value set by earlier rules. Note that you cannot save a rule when all actions use default/inherited values. You can choose to turn it On or Off if the chosen criteria match.

There are no additional parameters to set.