链接在mailto正文中被删减

Question

I have a javascript code that generates emails with links in the body.

Some of the links have spaces within the link, so the link gets cut of.

I tried replacing the spaces with the asacii code but it didn't work.

var lineBreak = "%0D%0A";

function GetMailToInfo(attachment, body) {

    attachment = attachment ? attachment.replace(" ","%0D%0A") + lineBreak + lineBreak : "";
    body += attachment + signature;
    window.location.href = "mailto:" + emailTo + "?subject=" + subject() + "&body=" + body;
}

Any idea on how to solve that?

Answer 1

Your problem is most likely because String.replace only replaces the first occurrence when using a string as the first parameter. See this MDN documentation .

I would suggest either looping:

while (attachment.indexOf(" ") >= 0) {
    attachment = attachment.replace(" ", "%0A%0D");
}

Or using RegEx to perform a pattern-based replacement.

However, Quentin's solution is the proper way to go about encoding strings to be safe for URI use. My answer here is for the more general case where it may not be a URI string.

Answer 2

Use encodeURIComponent to properly escape special characters in URLs:

window.location.href = 
    "mailto:"   + encodeURIComponent(emailTo) + 
    "?subject=" + encodeURIComponent(subject()) + 
    "&body="    + encodeURIComponent(body);