错误：未捕获的异常：编译错误：

Question

我使用glfx.js在画布上添加了一些效果。我创建了一个更改画布的按钮，有时会收到错误“错误：未捕获的异常：编译错误：”。感谢JavaScript global error handling。我得到了更多详细信息。

我将window.onerror事件分配给事件处理程序，我得到了：

错误：未捕获的异常：编译错误： 网址： 行：0

错误：编译错误：

我该如何解决该错误？

代码：

function createContrastCanvas( imgEffect, canvasSent, p, A, x ) {
        $( ".loaderImgEffects" ).fadeIn();
        var base64 = canvasSent.toDataURL( "image/jpeg" );
        var image = new Image();
        image.setAttribute( "id", "contrast_image");

        image.addEventListener( "load", function() {
            console.log(2);
            document.body.appendChild( image );
                try {
                    var canvas = fx.canvas();
                    canvas.setAttribute( "id", "dialog_canvas" );
                    console.log(3);
                } catch (e) {
                    alert(e);
                    return;
                }

                // convert the image to a texture
                var contrastImage = document.getElementById( 'contrast_image' );
                var texture = canvas.texture( contrastImage );
                console.log( 4 );


                switch( imgEffect ) {
                    case "contrast":
                    console.log(5);
                        canvas.draw(texture).brightnessContrast(0.1, 0.24).update();
                        //contrastBase64[0] = canvas.toDataURL( "image/jpeg" ); 
                        contrastBase64[0] = image;
                    break;

                    case "hue":
                    console.log(5);
                        canvas.draw(texture).hueSaturation( 0, 0.39 ).update();
                        //hueBase64[0] = canvas.toDataURL( "image/jpeg" );                         
                        hueBase64[0] = image;              
                    break;

                    /*case "denoise":
                        canvas.draw(texture).unsharpMask(20, 0.45).update();
                    break;*/
                }

                    console.log(6);
                // replace the image with the canvas
                $( "#dialog_canvas" ).parent().html( canvas );

                $( ".loaderImgEffects" ).fadeOut();
                //activeAllEvents( canvas, p, A, x );
                //document.getElementById( "dialog_canvas" ).parentNode.removeChild( contrastImage );
        } )
        image.src = base64;
    }