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fix(grid): ensure resize observer is only created if available in ssr - 22.0.x - #17499

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fix(grid): ensure resize observer is only created if available in ssr - 22.0.x#17499
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@mddragnev mddragnev commented Aug 11, 2026

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Closes #17497

Description

Motivation / Context

Type of Change (check all that apply):

  • Bug fix
  • New functionality
  • Breaking change (fix or feature that would cause existing functionality to not work as expected)
  • Refactoring (no functional changes)
  • Documentation
  • Demos
  • CI/CD
  • Tests
  • Changelog
  • Skills/Agents

Component(s) / Area(s) Affected:

How Has This Been Tested?

  • Unit tests
  • Manual testing
  • Automated e2e tests

Test Configuration:

  • Angular version:
  • Browser(s):
  • OS:

Screenshots / Recordings

Checklist:

  • All relevant tags have been applied to this PR
  • This PR includes unit tests covering all the new code (test guidelines)
  • This PR includes API docs for newly added methods/properties (api docs guidelines)
  • This PR includes feature/README.MD updates for the feature docs
  • This PR includes general feature table updates in the root README.MD
  • This PR includes CHANGELOG.MD updates for newly added functionality
  • This PR contains breaking changes
  • This PR includes ng update migrations for the breaking changes (migrations guidelines)
  • This PR includes behavioral changes and the feature specification has been updated with them
  • Accessibility (ARIA, keyboard navigation, focus management) has been verified

Copilot AI lite review requested due to automatic review settings August 11, 2026 12:14
@mddragnev mddragnev changed the title fix(grid): ensure resize observer is only created if available in ssr fix(grid): ensure resize observer is only created if available in ssr - 22.0.x Aug 11, 2026

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Pull request overview

Fixes an SSR runtime error by preventing ResizeObserver construction when it’s unavailable (e.g., server-side rendering), in the IgxGridForOfDirective virtualization flow (used by the grid).

Changes:

  • Guard ResizeObserver instantiation in ngOnInit() by checking getResizeObserver() result before constructing.
  • Avoid SSR crashes when window.ResizeObserver is undefined.

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