17 lines
424 B
JavaScript
17 lines
424 B
JavaScript
|
"use strict";
|
||
|
|
function getHeaderValueFromOptions(options) {
|
||
|
|
if (options && options.allow) {
|
||
|
|
return 'on';
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return 'off';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
module.exports = function dnsPrefetchControl(options) {
|
||
|
|
var headerValue = getHeaderValueFromOptions(options);
|
||
|
|
return function dnsPrefetchControl(_req, res, next) {
|
||
|
|
res.setHeader('X-DNS-Prefetch-Control', headerValue);
|
||
|
|
next();
|
||
|
|
};
|
||
|
|
};
|