The full height of the image cannot be captured by html2canvas

It baffles me that html2canvas is failing to capture the full height of the div.

html2canvas($container, {
    height: $container.height(),
    onrendered: function(canvas) {

        var data = canvas.toDataURL('image/png');           
        var file = dataURLtoBlob(data);

        var formObjects = new FormData();
        formObjects.append('file', file);

        $.ajax({
           url: 'ajax_preview',
           type: 'POST',
           data: formObjects,
           processData: false,
           contentType: false,
        }).done(function(response){
            console.log(response);
            //window.open(response, '_blank');  
        });
    }
});

I've attempted adjusting the height manually with height: $container.height(), but the image remains cropped. Setting the height to 1124 yielded the same result.

It's faint, but in the image below, there's a white section missing any content or borders. Everything within that area is excluded from the capture.

Any thoughts on what might be causing this issue?

Answer №1

Issue Resolved.

After reviewing my code, I discovered that the error was stemming from a CSS file that was being utilized. In order to rectify this issue, I removed and reloaded the CSS file when converting the div into an image.

// $= signifies ends with
("link[href$='my.css']").remove();

html2canvas($container, {
    onrendered: function(canvas) {

        var data = canvas.toDataURL('image/png');           
        var file = dataURLtoBlob(data);

        // etc

        $('head').append("<link href='" + base_url + "public/css/my.css' rel='stylesheet'/>");
    }
});

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