Fix the error when delete some images

Signed-off-by: Yogi_Wang <yawang@vmware.com>
fix #9604 fix #9603

src/portal/lib/src/repository-gridview/repository-gridview.component.ts

@@ -181,6 +181,7 @@ export class RepositoryGridviewComponent implements OnChanges, OnInit {
                     }, error => {
                         this.errorHandler.error(error);
                         this.loading = false;
+                        this.refresh();
                     });
                 }
             }

src/portal/lib/src/shared/shared.utils.ts

@@ -1,3 +1,5 @@
+import { errorSrcWithoutHttpClient } from "ngx-markdown";
+
 // Copyright (c) 2017 VMware, Inc. All Rights Reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -11,9 +13,27 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+
+/**
+ *  handle docker client response error
+ * {"code":412,"message":"{\"errors\":[{\"code\":\"DENIED\",\"message\":\"Failed to process request,
+ * due to 'golang1:test1' is a immutable tag.\",\"detail\":\"Failed to process request,
+ * due to 'golang1:test1' is a immutable tag.\"}]}\n"}
+ * @param errorString string
+ */
+const errorHandlerForDockerClient = function (errorString: string): string {
+    try {
+        const errorMsgBody = JSON.parse(errorString);
+        if (errorMsgBody.errors && errorMsgBody.errors[0] && errorMsgBody.errors[0].message) {
+            return errorMsgBody.errors[0].message;
+        }
+    } catch (err) { }
+    return errorString;
+};
+
 /**
  * To handle the error message body
- *
+ * Standard error return format {code : number, message: string} / {error: {code: number, message: string},...}
  **
  * returns {string}
  */
@@ -22,19 +42,27 @@ export const errorHandler = function (error: any): string {
     if (!error) {
         return "UNKNOWN_ERROR";
     }
+    // Not a standard error return Basically not used cover unknown error
     try {
         return JSON.parse(error.error).message;
     } catch (err) { }
+    // Not a standard error return Basically not used cover unknown error
     if (typeof error.error === "string") {
         return error.error;
     }
     if (error.error && error.error.message) {
-        return error.error.message;
+        if (typeof error.error.message === "string") {
+            // handle docker client response error
+            return errorHandlerForDockerClient(error.error.message);
+        }
     }
     if (error.message) {
-        return error.message;
+        // handle docker client response error
+        if (typeof error.message === "string") {
+            return errorHandlerForDockerClient(error.message);
+        }
     }
-
+    // Not a standard error return Basically not used cover unknown error
     if (!(error.statusCode || error.status)) {
         // treat as string message
         return '' + error;