fix: remove listener on form unmount

packages/search-site/src/index.ejs

@@ -294,7 +294,10 @@
           };
         },
         created() {
-          emitter.on('error', msg => this.error = msg);
+          emitter.on('error', this.setError);
+        },
+        beforeDestroy() {
+          emitter.off('error', this.setError);
         },
         methods: {
           handleSubmit() {
@@ -311,7 +314,10 @@
           },
           resetForm() {
             this.$el.reset();
-          }
+          },
+          setError(msg) {
+            this.error = msg
+          },
         },
       });