iron-ajax send the "content-type" header instead of "Content-Type"

[albuquerq]

Description

iron-ajax send the "content-type" header instead of "Content-Type"

Expected outcome

Send "Content-Type"

Actual outcome

Live Demo

In file "iron-ajax.html", line 410:

get requestHeaders() {
var headers = {};
var contentType = this.contentType;
if (contentType == null && (typeof this.body === 'string')) {
contentType = 'application/x-www-form-urlencoded';
}
if (contentType) {
headers['content-type'] = contentType; // Change to 'Content-Type'
}
var header;
if (typeof this.headers === 'object') {
for (header in this.headers) {
headers[header] = this.headers[header].toString();
}
}
return headers;
}

Steps to reproduce

Browsers Affected

• Chrome
• Firefox
• Safari 9
• Safari 8
• Safari 7
• Edge
• IE 11
• IE 10

[drix]

It is a valid point, need to know the implication of the current projects using it, if it would break them.

[arthurevans]

Why would this matter? HTTP header names are supposed to be case-insensitive. https://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2

[drix]

Arthurevans, HTTP header names are indeed case insensitive, although the use of camel case make the framework looks more mature and give more confidence to users. I know is just glitter, and again doesn't hurt to change.