minor bugs fix (#804)

* fix: error message cannot display correctly

* fix: query string missing when redirect from root to index

frontend/packages/core/src/utils/fetch.ts

@@ -80,9 +80,13 @@ export async function fetcher<T = unknown>(url: string, options?: RequestInit):
     }
 
     let response: Data<T> | T;
-    try {
     if (res.headers.get('content-type')?.includes('application/json')) {
+        try {
             response = await res.json();
+        } catch (e) {
+            const t = await logErrorAndReturnT(e);
+            throw new Error(t('errors:parse-error'));
+        }
         if (response && 'status' in response) {
             if (response.status !== 0) {
                 const t = await logErrorAndReturnT(response);
@@ -93,7 +97,13 @@ export async function fetcher<T = unknown>(url: string, options?: RequestInit):
         }
         return response;
     } else {
-            const data = await res.blob();
+        let data: Blob;
+        try {
+            data = await res.blob();
+        } catch (e) {
+            const t = await logErrorAndReturnT(e);
+            throw new Error(t('errors:parse-error'));
+        }
         const disposition = res.headers.get('Content-Disposition');
         // support safari
         if (!data.arrayBuffer) {
@@ -115,10 +125,6 @@ export async function fetcher<T = unknown>(url: string, options?: RequestInit):
         }
         return {data, type: res.headers.get('Content-Type'), filename};
     }
-    } catch (e) {
-        const t = await logErrorAndReturnT(e);
-        throw new Error(t('errors:parse-error'));
-    }
 }
 
 export const cycleFetcher = async <T = unknown>(urls: string[], options?: RequestInit): Promise<T[]> => {

visualdl/server/app.py

@@ -69,6 +69,12 @@ def create_app(args):
     public_path = args.public_path
     api_path = public_path + '/api'
 
+    def append_query_string(url):
+        query_string = ''
+        if request.query_string:
+            query_string = '?' + request.query_string.decode()
+        return url + query_string
+
     @babel.localeselector
     def get_locale():
         lang = args.language
@@ -87,7 +93,7 @@ def create_app(args):
 
         @app.route('/')
         def base():
-            return redirect(public_path, code=302)
+            return redirect(append_query_string(public_path), code=302)
 
         @app.route('/favicon.ico')
         def favicon():
@@ -98,10 +104,7 @@ def create_app(args):
 
         @app.route(public_path + '/')
         def index():
-            query_string = ''
-            if request.query_string:
-                query_string = '?' + request.query_string.decode()
-            return redirect(public_path + '/index' + query_string, code=302)
+            return redirect(append_query_string(public_path + '/index'), code=302)
 
         @app.route(public_path + '/<path:filename>')
         def serve_static(filename):