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async ：Whether to parse and render the element asynchronously
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allowTaint ：Whether to allow cross-origin images to taint the canvas
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useCORS ：Whether to attempt to load images from a server using CORS
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canvas：Existing  canvas element to use as a base for drawing on
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foreignObjectRendering：Whether to use ForeignObject rendering if the browser supports it
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imageTimeout：Timeout for loading an image (in milliseconds). Set to  0 to disable timeout
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ignoreElements：Predicate function which removes the matching elements from the render
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logging：Enable logging for debug purposes
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onclone：Callback function which is called when the Document has been cloned for rendering, can be used to modify the contents that will be rendered without affecting the original source document
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proxy：Url to the proxy which is to be used for loading cross-origin images. If left empty, cross-origin images won't be loaded
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removeContainer：Whether to cleanup the cloned DOM elements html2canvas creates temporarily
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scale：The scale to use for rendering. Defaults to the browsers device pixel ratio
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width：The width of the  canvas
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x：Crop canvas x-coordinate
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scrollX：The x-scroll position to used when rendering element, (for example if the Element uses  position: fixed )
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windowWidth：Window width to use when rendering  Element , which may affect things like Media queries
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async:是否異步解析和呈現(xiàn)的元素

allowTaint:是否允許跨源圖像到畫布上的污點(diǎn)

useCORS:嘗試從服務(wù)器加載圖像使用歌珥

canvas:現(xiàn)有的畫布元素使用作為借鑒的基礎(chǔ)

foreignObjectRendering:是否使用ForeignObject呈現(xiàn)如果瀏覽器支持它

imageTimeout:超時(shí)(以毫秒為單位)。設(shè)置為0以禁用超時(shí)

ignoreElements:謂詞函數(shù)刪除匹配元素的呈現(xiàn)

logging:啟用日志用于調(diào)試目的

onclone:回調(diào)函數(shù)叫做文檔時(shí)已經(jīng)克隆了渲染,可以用來(lái)修改的內(nèi)容呈現(xiàn)在不影響原來(lái)的源文檔

proxy:Url的代理用于加載跨源圖像。如果留空，則不會(huì)加載跨源圖像

removeContainer:是否清理克隆的DOM元素暫時(shí)html2canvas創(chuàng)建

scale:用于規(guī)模呈現(xiàn)。默認(rèn)為瀏覽器設(shè)備像素比

width:畫布的寬度

x:作物畫布坐標(biāo)

scrollX:x-scroll位置時(shí)使用渲染元素(例如如果元素使用位置:固定)

windowWidth:窗口寬度渲染元素時(shí)使用,可能會(huì)影響諸如媒體查詢