在chrome浏览器上，html2canvas生成的图片高度变小了，文字也变小了

[wangdong1209]

Please make sure you are testing with the latest release of html2canvas.
Old versions are not supported and issues reported for them will be closed.

Please follow the general troubleshooting steps first:

• You are using the latest version
• You are testing using the non-minified version of html2canvas and checked any potential issues reported in the console

Bug reports:

Please replace this line with a brief summary of your issue AND if possible an example on jsfiddle.

Specifications:

• html2canvas version tested with:
• Browser & version:
• Operating system: