Eleventy Dev Server v2.0.3

• Add option for setting default response headers (add your own CORS headers) by @vrugtehagel in #87
• DOM Diff updates:
  • Re-attach updated custom element nodes to reapply web component connectedCallback logic.
  • Fix for updating Declarative Shadow DOM content #90
  • Full page reload when updating inline <script> content

Minutiae

• Included with Eleventy core v3.0.0-beta.2 v3.0.0-alpha.19.
• New Contributors: @vrugtehagel
• Full Changelog: v2.0.2...v2.0.3
• Milestone: https://github.com/11ty/eleventy-dev-server/milestone/7?closed=1