Uncaught TypeError: ..... Value is not of type 'long'.

[Reza]

The error

Uncaught TypeError: Failed to execute 'getImageData' on 'CanvasRenderingContext2D': Value is not of type 'long'.
    at getTextInfo (wordcloud2.js:633:28)
    at putWord (wordcloud2.js:933:18)
    at Array.loop (wordcloud2.js:1199:21)
    at setZeroTimeoutMessage (wordcloud2.js:53:22)

code:

 <canvas id="canvas"></canvas>
           
           <script>              
            tagList=document.getElementById('userlable').textContent // => gets array
                    console.log(tagList);
           WordCloud(document.getElementById('canvas'), {
                list: tagList,
                fontFamily: 'Times, serif',
                fontWeight: 'normal',
                color: 'random-dark',
                minSize: 0, // 0 to disable
                weightFactor: 20,
                clearCanvas: true,
                backgroundColor: '#fff', // opaque white = rgba(255, 255, 255, 1)
                gridSize: 10,
                drawOutOfBound: false,
                shrinkToFit: false,
                origin: null, // origin of the “cloud” in [x, y]
                drawMask: false, // visualize the grid
                maskColor: 'rgba(255,0,0,0.3)',
                maskGapWidth: 0.3,
                wait: 0,
                abortThreshold: 0, // disabled
                abort: function noop() { },
                minRotation: -Math.PI / 2,
                maxRotation: Math.PI / 2,
                rotationSteps: 0,
                shuffle: true,
                rotateRatio: 0.1,
                // circle, cardioid, diamond, square, triangle-forward, 
                // triangle, pentagon, and star
                shape: 'circle',
                ellipticity: 0.65,
                // allows the user to define the class of the span elements
                classes: null,
                // callback
                hover: null,
                click: null
            });
        </script>
       

[vitsumoc]

maybe you should check your array tagList
it should be a two-level array
[["for", 12], ["bar", 6]]
not a three-level array
[[["for", 12], [ "bar", 6]]]