fix(animation): strip CSS comments from color strings before interpolation by jonathan-fulton · Pull Request #12189

fix(animation): strip CSS comments from color strings before interpolation by jonathan-fulton · Pull Request #12189 · chartjs/Chart.js

Summary

Fixes #12079

When color strings contain CSS-style comments (e.g., rgba(255, 0, 0 /* red */, 0.5)), the color interpolation during animation would fail because the color helper couldn't parse the commented string.

Changes

Added stripCssComments helper function to remove /* ... */ style comments from color strings
Applied the stripping before passing colors to the color interpolation functions

Use Case

Some users document their colors inline using CSS comments, which is valid CSS but wasn't being handled by Chart.js's animation system:

backgroundColor: 'rgba(255, 0, 0 /* red */, 0.5)'

This fix ensures such colors can still be animated properly.