Add missed return to actions view fetch

Author: silverwind

web_src/js/components/RepoActionView.vue

@@ -225,7 +225,11 @@ const sfc = {
             this.fetchArtifacts(), // refresh artifacts if upload-artifact step done
           ]);
         } catch (err) {
-          if (!(err instanceof TypeError)) throw err; // avoid network error while unloading page
+          if (err instanceof TypeError) {
+            return; // avoid network error while unloading page
+          } else {
+            throw err;
+          }
         }
 
         this.artifacts = artifacts['artifacts'] || [];