html2canvas And FileSaver保存图片到本地

最近做项目为了解决把html保存一个图片，使用了html2canvas前端插件实现。

html2canvas Github地址
FileSaver Github地址

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推荐一款免费的中文网的CDN

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支持的浏览器

• Firefox 3.5+
• Google Chrome
• Opera 12+
• IE9+
• Safari 6+

参考demo

    
    
    
    
    



    测试html5页面截图的生成界面如下:

可用参数

参数名称	类型	默认值	描述
allowTaint	boolean	false	Whether to allow cross-origin images to taint the canvas---允许跨域
background	string	#fff	Canvas background color, if none is specified in DOM. Set undefined for transparent---canvas的背景颜色，如果没有设定默认透明
height	number	null	Define the heigt of the canvas in pixels. If null, renders with full height of the window.---canvas高度设定
letterRendering	boolean	false	Whether to render each letter seperately. Necessary if letter-spacing is used.---在设置了字间距的时候有用
logging	boolean	false	Whether to log events in the console.---在console.log()中输出信息
proxy	string	undefined	Url to the proxy which is to be used for loading cross-origin images. If left empty, cross-origin images won't be loaded.---代理地址
taintTest	boolean	true	Whether to test each image if it taints the canvas before drawing them---是否在渲染前测试图片
timeout	number	0	Timeout for loading images, in milliseconds. Setting it to 0 will result in no timeout.---图片加载延迟，默认延迟为0，单位毫秒
width	number	null	Define the width of the canvas in pixels. If null, renders with full width of the window.---canvas宽度