--- title: "Context Created JavaScript" slug: "context-created-javascript" updated: 2025-04-03T10:52:35Z published: 2025-04-03T10:52:35Z canonical: "help.mozenda.com/context-created-javascript" --- > ## Documentation Index > Fetch the complete documentation index at: https://help.mozenda.com/llms.txt > Use this file to discover all available pages before exploring further. # Context Created JavaScript Context Created JavaScript is a JavaScript snippet that will be injected into every JavaScript context before the corresponding document/frame is created. It is used to affect low-level functionality on the page before any content is loaded into the page. It is also run before any Mozenda-specific functions are injected into the page. To set Context Created JavaScript, select Page > Properties > Before Page Render > Context Created JavaScript.