nodejs
diff --git a/Collapse file
‎lib/_http_outgoing.js‎
Copy file name to clipboardExpand all lines: lib/_http_outgoing.js
+4-2Lines changed: 4 additions & 2 deletions b/Collapse file
‎lib/_http_outgoing.js‎
Copy file name to clipboardExpand all lines: lib/_http_outgoing.js
+4-2Lines changed: 4 additions & 2 deletions
@@ -673,20 +673,22 @@ OutgoingMessage.prototype.setHeaders = function setHeaders(headers) {
   // We also cannot safely split by comma.
   // To avoid setHeader overwriting the previous value we push
   // set-cookie values in array and set them all at once.
-  const cookies = [];
+  let cookies = null;
 
   for (const { 0: key, 1: value } of headers) {
     if (key === 'set-cookie') {
       if (ArrayIsArray(value)) {
+        cookies ??= [];
         cookies.push(...value);
       } else {
+        cookies ??= [];
         cookies.push(value);
       }
       continue;
     }
     this.setHeader(key, value);
   }
-  if (cookies.length) {
+  if (cookies != null) {
     this.setHeader('set-cookie', cookies);
   }
Original file line number	Diff line number	Diff line change
`@@ -673,20 +673,22 @@ OutgoingMessage.prototype.setHeaders = function setHeaders(headers) {`
`673`	`673`	`// We also cannot safely split by comma.`
`674`	`674`	`// To avoid setHeader overwriting the previous value we push`
`675`	`675`	`// set-cookie values in array and set them all at once.`
`676`		`- const cookies = [];`
	`676`	`+ let cookies = null;`
`677`	`677`
`678`	`678`	`for (const { 0: key, 1: value } of headers) {`
`679`	`679`	`if (key === 'set-cookie') {`
`680`	`680`	`if (ArrayIsArray(value)) {`
	`681`	`+ cookies ??= [];`
`681`	`682`	`cookies.push(...value);`
`682`	`683`	`} else {`
	`684`	`+ cookies ??= [];`
`683`	`685`	`cookies.push(value);`
`684`	`686`	`}`
`685`	`687`	`continue;`
`686`	`688`	`}`
`687`	`689`	`this.setHeader(key, value);`
`688`	`690`	`}`
`689`		`- if (cookies.length) {`
	`691`	`+ if (cookies != null) {`
`690`	`692`	`this.setHeader('set-cookie', cookies);`
`691`	`693`	`}`
`692`	`694`