Base64图像数据不与fabricjs中的loadfromJSON一起使用

Question

我正在尝试加载一个有图像对象的json对象。 图像对象具有基础64图像数据作为背景。 但我无法提交loadFromJSON方法。

码：

var jsonDataSet = '{"objects":[{"type":"image","originX":"left","originY":"top","left":0,"top":0,"width":700,"height":600,"fill":"rgb(0,0,0)","overlayFill":null,"stroke":null,"strokeWidth":1,"strokeDashArray":null,"strokeLineCap":"butt","strokeLineJoin":"miter","strokeMiterLimit":10,"scaleX":1,"scaleY":1,"angle":0,"flipX":false,"flipY":false,"opacity":1,"selectable":false,"hasControls":true,"hasBorders":true,"hasRotatingPoint":true,"transparentCorners":true,"perPixelTargetFind":false,"shadow":null,"visible":true,"clipTo":null,"src":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAn4AAAFPCAYAAADTHsP1AAAgAElEQ…Lv/vuU1wVsyvXK+Kks1f6gffSCThZ1km3u6NFklCnFes//AbZzi+iGF3/7AAAAAElFTkSuQmCC","filters":[]}],"background":""}';

canvas.loadFromJSON (jsonDataSet);

canvas.renderAll();

它显示错误为"Error loading data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAn4AAAFPCAYAAADTHsP1AAAgAElEQ…Lv/vuU1wVsyvXK+Kks1f6gffSCThZ1km3u6NFklCnFes//AbZzi+iGF3/7AAAAAElFTkSuQmCC "

Answer 1

如果你使用最新的fabric.js版本，那就是一个bug。 我用拉取请求＃800修复了这个问题： https ： //github.com/kangax/fabric.js/pull/800 。

BTW您的base64 dataURL上面的代码不正确 - 它有三个点（lEQ ... Lv / vuU）。 可能是复制带来的副作用。