diff --git a/apps/jingrow/frontend/src/views/HomePage.vue b/apps/jingrow/frontend/src/views/HomePage.vue
index 6b52fd3..b55a78b 100644
--- a/apps/jingrow/frontend/src/views/HomePage.vue
+++ b/apps/jingrow/frontend/src/views/HomePage.vue
@@ -766,10 +766,17 @@ const isValidImageUrl = (url: string): boolean => {
   if (!url || typeof url !== 'string') return false
   try {
     const urlObj = new URL(url)
+    if (!['http:', 'https:'].includes(urlObj.protocol)) {
+      return false
+    }
+    
     const pathname = urlObj.pathname.toLowerCase()
     const imageExtensions = ['.jpg', '.jpeg', '.png', '.webp', '.gif', '.bmp']
-    return imageExtensions.some(ext => pathname.endsWith(ext)) || 
-           urlObj.pathname.match(/\.(jpg|jpeg|png|webp|gif|bmp)(\?|$)/i) !== null
+    
+    const hasImageExtension = imageExtensions.some(ext => pathname.endsWith(ext)) || 
+                              urlObj.pathname.match(/\.(jpg|jpeg|png|webp|gif|bmp)(\?|$)/i) !== null
+    
+    return hasImageExtension || pathname.length > 0
   } catch {
     return false
   }
diff --git a/apps/jingrow/frontend/src/views/tools/remove_background/remove_background.vue b/apps/jingrow/frontend/src/views/tools/remove_background/remove_background.vue
index 507555e..01616ca 100644
--- a/apps/jingrow/frontend/src/views/tools/remove_background/remove_background.vue
+++ b/apps/jingrow/frontend/src/views/tools/remove_background/remove_background.vue
@@ -308,10 +308,17 @@ const isValidImageUrl = (url: string): boolean => {
   if (!url || typeof url !== 'string') return false
   try {
     const urlObj = new URL(url)
+    if (!['http:', 'https:'].includes(urlObj.protocol)) {
+      return false
+    }
+    
     const pathname = urlObj.pathname.toLowerCase()
     const imageExtensions = ['.jpg', '.jpeg', '.png', '.webp', '.gif', '.bmp']
-    return imageExtensions.some(ext => pathname.endsWith(ext)) || 
-           urlObj.pathname.match(/\.(jpg|jpeg|png|webp|gif|bmp)(\?|$)/i) !== null
+    
+    const hasImageExtension = imageExtensions.some(ext => pathname.endsWith(ext)) || 
+                              urlObj.pathname.match(/\.(jpg|jpeg|png|webp|gif|bmp)(\?|$)/i) !== null
+    
+    return hasImageExtension || pathname.length > 0
   } catch {
     return false
   }