HTML2Canvas，在edg浏览器中适配问题

[naturalAndGraceful]

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:

HTML2Canvas，在edg浏览器中适配问题生成内容文字会变小，但是在chrome和火狐浏览器中没有任何问题，

Specifications:

• html2canvas version tested with: 1.4.1
• Browser & version:
• Operating system:
• HTML2Canvas，在edg浏览器中适配问题生成内容文字会变小，但是在chrome和火狐浏览器中没有任何问题，