Replacement for javascript escape?

I know that the escape function has been deprecated and that you should use encodeURI or encodeURIComponent instead. However, the encodeUri and encodeUriComponent doesn't do the same thing as escape.

I want to create a mailto link in javascript with Swedish åäö. Here are a comparison between escape, encodeURIComponent and encodeURI:

console.log("mailto:?subject="+escape(subject)+"&body=" + escape(body));
console.log("mailto:?subject="+encodeURIComponent(subject)+"&body=" + encodeURIComponent(body));
console.log("mailto:?subject="+encodeURI(subject)+"&body=" + encodeURI(body));  

Output:
mailto:?subject=My%20subject%20with%20%E5%E4%F6&body=My%20body%20with%20more%20characters%20and%20swedish%20%E5%E4%F6
mailto:?subject=My%20subject%20with%20%C3%A5%C3%A4%C3%B6&body=My%20body%20with%20more%20characters%20and%20swedish%20%C3%A5%C3%A4%C3%B6
mailto:?subject=My%20subject%20with%20%C3%A5%C3%A4%C3%B6&body=My%20body%20with%20more%20characters%20and%20swedish%20%C3%A5%C3%A4%C3%B6 

Only the mailto link created with "escape" opens a properly formatted mail in Outlook using IE or Chrome. When using encodeURI or encodeURIComponent the subject says:

My subject with åäö

and the body is also looking messed up.

Is there some other function besides escape that I can use to get the working mailto link?

---

The escape() function was deprecated in JavaScript version 1.5. Use encodeURI() or encodeURIComponent() instead.

example

string:            "May/June 2016, Volume 72, Issue 3"
escape:            "May/June%202016%2C%20Volume%2072%2C%20Issue%203"
encodeURI:         "May/June%202016,%20Volume%2072,%20Issue%203"
encodeURIComponent:"May%2FJune%202016%2C%20Volume%2072%2C%20Issue%203"

source https://www.w3schools.com/jsref/jsref_escape.asp

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