#react19

1 article

Chronicle

1 posts

2025

01

01 May 20 Fixing 'MessageChannel is not defined' Error When Deploying Astro 5 + React 19 to Cloudflare A detailed analysis of the 'MessageChannel is not defined' error when deploying Astro 5 + React 19 projects to Cloudflare Pages, with complete solutions and in-depth technical insights