@sincronia/babel-preset-servicenow

Overview

This Babel preset is meant to run absolutely last of all plugins and presets. Its purpose is to remove or refactor any code that might break ServiceNow's serverside Rhino engine. Right now it is fairly simple, but it might be enhanced in the future if more issues are discovered.

Installation

npm i -D @sincronia/babel-preset-servicenow

After the installation is completed, add it to the presets section of your Babel configuration.

Sanitizer

The sanitizer performs various operations on code to make it safe for ServiceNow

__proto__ references

ServiceNow blocks references to __proto__ on the serverside. This is sidestepped by changing all references to __proto__ to __proto-sn__. So far all functionality has been preserved in transpiled output.

test.__proto__ = {};

becomes...

test.__proto-sn__ = {};

Keyword Identifiers

ServiceNow does not allow properties of objects that have the same name as keywords to be accessed directly. This is sidestepped by using the index syntax instead.

test.default;

becomes...

test["default"]