fix: http parser set response (#545)

midwayjs · Jul 20, 2020 · 74a854d · 74a854d
1 parent a0cdf69
commit 74a854d
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/packages/serverless-http-parser/src/response.ts b/packages/serverless-http-parser/src/response.ts
@@ -154,12 +154,12 @@ export const response = {
    * @api public
    */
   set(field, val?) {
-    if (val) {
+    if (val !== undefined) {
       if (Array.isArray(val))
         val = val.map(v => (typeof v === 'string' ? v : String(v)));
       else if (typeof val !== 'string') val = String(val);
       this.res.setHeader(field, val);
-    } else {
+    } else if (typeof field !== 'string') {
       for (const key in field) {
         this.set(key, field[key]);
       }