Unhandled Promise rejection in firefox

[theSumit67]

Use case: description, code

I am using Angular framework. dom-to-image library is loaded as script tag from assets.
Sample

const content = document.getElementsByClassName("app-wrapper")[0];
domtoimage.toBlob(content).then((imgData) => {
    formData.append("file", imgData, "screenshot.png");
    // formData used in a API .......
});

On chrome its working fine, however on firefox its generating following error -

Stack trace -

Browsers

• Chrome 49+
• [* ] Firefox 45+

[qq15725]

You can try https://github.com/qq15725/modern-screenshot

seems to be an svg+xml problem with no encode uri