Sometimes it makes chart stop being responsive #439

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1. ajuvonen commented on Feb 16, 2026

   

   ajuvonen

   on Feb 16, 2026

   Last edited by ajuvonen

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   Encountered the same issue, using resizeDelay on a chart crashes the plugin. Here's the unminified stack:

   Uncaught (in promise) TypeError: can't access property "length", labels is undefined
       draw chartjs-plugin-datalabels.esm.js:1003
       afterDatasetsDraw chartjs-plugin-datalabels.esm.js:1302
       callback helpers.core.ts:109
       _notify core.plugins.js:65
       notify core.plugins.js:46
       notifyPlugins core.controller.js:1130
       _drawDatasets core.controller.js:775
       draw core.controller.js:724
       render core.controller.js:693
       _resize core.controller.js:299
       resize core.controller.js:271
       attached core.controller.js:1026
       bindResponsiveEvents core.controller.js:1045
       bindEvents core.controller.js:967
       _initialize core.controller.js:246
       Chart core.controller.js:191
       renderChart chart.ts:40
   

   The error comes through this for-loop in the draw function:

   for (i = 0, ilen = labels.length; i < ilen; ++i) {
     label = labels[i];
     state = label.$layout;
   
     if (state._visible) {
       geometry = label.geometry();
       center = coordinates(label._el, label.model(), geometry);
       state._box.update(center, geometry, label.rotation());
       label.draw(chart, center);
     }
   }
   
2. brian-patrick-kyndryl commented on Feb 20, 2026

   

   brian-patrick-kyndryl

   on Feb 20, 2026

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   +1, had to remove resizeDelay to resolve
3. ajuvonen commented on Mar 12, 2026

   

   ajuvonen

   on Mar 12, 2026

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   A similar problem with resizeDelay has a suggested resolution in another popular chartJS plugin: chartjs/chartjs-plugin-annotation#909. Would something similar also work for this plugin, even if the error location is not the same?