fix #2299 and #2296 and #2009 and #493

[ysk2014]

Summary

This PR fixes/implements the following bugs/features

• Bug 1: opacity
• Feature 1: text-stroke
• Feature 2: css filter - only supports img at present
• Feature 3: font color gradient - support left、right、bottom、top

[ysk2014]

I think opacity is an attribute that can affect child elements and should be placed in effects

[uinstinct]

I wonder why this pull request is not merged.

[nurulalamador]

Can you make a build release I mean a single .js file like html2canvas.js of this please?

[kizivat]

Can you make a build release I mean a single .js file like html2canvas.js of this please?

You can download the artifacts from the CI routine. However, here you go: https://github.com/niklasvh/html2canvas/suites/1187063696/artifacts/17429870 :)

[nurulalamador]

Can you make a build release I mean a single .js file like html2canvas.js of this please?

You can download the artifacts from the CI routine. However, here you go: https://github.com/niklasvh/html2canvas/suites/1187063696/artifacts/17429870 :)

Thank you very much for your help.

[ysk2014]

FYI, @niklasvh

[horseson2018]

大佬你解决了opacity的bug吗

[ysk2014]

大佬你解决了opacity的bug吗

解决了。你可以试试；不行可以找我

[horseson2018]

大佬你解决了opacity的bug吗

解决了。你可以试试；不行可以找我

确实解决了，谢谢大佬。还有个下划线和删除线的粗细bug大佬了解吗