diff --git a/backend/src/routes.ts b/backend/src/routes.ts
index 94253d412..ddb625f04 100644
--- a/backend/src/routes.ts
+++ b/backend/src/routes.ts
@@ -26,42 +26,42 @@ class Routes {
 
   public async get2HStatistics(req: Request, res: Response) {
     const result = await statistics.$list2H();
-    res.send(result);
+    res.json(result);
   }
 
   public get24HStatistics(req: Request, res: Response) {
-    res.send(this.cache['24h']);
+    res.json(this.cache['24h']);
   }
 
   public get1WHStatistics(req: Request, res: Response) {
-    res.send(this.cache['1w']);
+    res.json(this.cache['1w']);
   }
 
   public get1MStatistics(req: Request, res: Response) {
-    res.send(this.cache['1m']);
+    res.json(this.cache['1m']);
   }
 
   public get3MStatistics(req: Request, res: Response) {
-    res.send(this.cache['3m']);
+    res.json(this.cache['3m']);
   }
 
   public get6MStatistics(req: Request, res: Response) {
-    res.send(this.cache['6m']);
+    res.json(this.cache['6m']);
   }
 
   public get1YStatistics(req: Request, res: Response) {
-    res.send(this.cache['1y']);
+    res.json(this.cache['1y']);
   }
 
   public async getRecommendedFees(req: Request, res: Response) {
     const result = feeApi.getRecommendedFee();
-    res.send(result);
+    res.json(result);
   }
 
   public getMempoolBlocks(req: Request, res: Response) {
     try {
       const result = mempoolBlocks.getMempoolBlocks();
-      res.send(result);
+      res.json(result);
     } catch (e) {
       res.status(500).send(e.message);
     }
@@ -80,27 +80,28 @@ class Routes {
     }
 
     const times = mempool.getFirstSeenForTransactions(txIds);
-    res.send(times);
+    res.json(times);
   }
 
   public getBackendInfo(req: Request, res: Response) {
-    res.send(backendInfo.getBackendInfo());
+    res.json(backendInfo.getBackendInfo());
   }
 
   public getBisqStats(req: Request, res: Response) {
     const result = bisq.getStats();
-    res.send(result);
+    res.json(result);
   }
 
   public getBisqTip(req: Request, res: Response) {
     const result = bisq.getLatestBlockHeight();
+    res.type('text/plain');
     res.send(result.toString());
   }
 
   public getBisqTransaction(req: Request, res: Response) {
     const result = bisq.getTransaction(req.params.txId);
     if (result) {
-      res.send(result);
+      res.json(result);
     } else {
       res.status(404).send('Bisq transaction not found');
     }
@@ -111,13 +112,13 @@ class Routes {
     const length = parseInt(req.params.length, 10) > 100 ? 100 : parseInt(req.params.length, 10) || 25;
     const [transactions, count] = bisq.getTransactions(index, length);
     res.header('X-Total-Count', count.toString());
-    res.send(transactions);
+    res.json(transactions);
   }
 
   public getBisqBlock(req: Request, res: Response) {
     const result = bisq.getBlock(req.params.hash);
     if (result) {
-      res.send(result);
+      res.json(result);
     } else {
       res.status(404).send('Bisq block not found');
     }
@@ -128,13 +129,13 @@ class Routes {
     const length = parseInt(req.params.length, 10) > 100 ? 100 : parseInt(req.params.length, 10) || 25;
     const [transactions, count] = bisq.getBlocks(index, length);
     res.header('X-Total-Count', count.toString());
-    res.send(transactions);
+    res.json(transactions);
   }
 
   public getBisqAddress(req: Request, res: Response) {
     const result = bisq.getAddress(req.params.address.substr(1));
     if (result) {
-      res.send(result);
+      res.json(result);
     } else {
       res.status(404).send('Bisq address not found');
     }
diff --git a/frontend/src/app/components/about/about.component.ts b/frontend/src/app/components/about/about.component.ts
index 7d73b481a..9b2f31adf 100644
--- a/frontend/src/app/components/about/about.component.ts
+++ b/frontend/src/app/components/about/about.component.ts
@@ -25,7 +25,7 @@ export class AboutComponent implements OnInit {
     if (this.stateService.network === 'bisq') {
       this.active = 2;
     }
-    if (document.location.port !== '443') {
+    if (document.location.port !== '') {
       this.hostname = this.hostname + ':' + document.location.port;
     }
   }