refactor: avoid assignment operators in conditional expressions

Author: panva

lib/shared/session.js

@@ -46,9 +46,8 @@ export default async function sessionHandler(ctx, next) {
       await ctx.oidc.session.save(ttl);
     }
 
-    let setCookie;
-    // eslint-disable-next-line no-cond-assign
-    if ((setCookie = ctx.response.get('set-cookie'))) {
+    let setCookie = ctx.response.get('set-cookie');
+    if (setCookie) {
       if (typeof setCookie === 'string') {
         setCookie = [setCookie];
       }