diff --git a/src/backend/InvenTree/InvenTree/fields.py b/src/backend/InvenTree/InvenTree/fields.py
index 7657a1a5c0..bc501fec46 100644
--- a/src/backend/InvenTree/InvenTree/fields.py
+++ b/src/backend/InvenTree/InvenTree/fields.py
@@ -36,9 +36,11 @@ class InvenTreeRestURLField(RestURLField):
         """Override default validation behavior for this field type."""
         strict_urls = get_global_setting('INVENTREE_STRICT_URLS', cache=False)
 
-        if not strict_urls and data is not empty and '://' not in data:
-            # Validate as if there were a schema provided
-            data = 'http://' + data
+        if not strict_urls and data is not empty and data is not None:
+            data = str(data).strip()
+            if '://' not in data:
+                # Validate as if there were a schema provided
+                data = 'http://' + data
 
         return super().run_validation(data=data)
 
diff --git a/src/backend/InvenTree/InvenTree/tests.py b/src/backend/InvenTree/InvenTree/tests.py
index a428647161..85f2ca2802 100644
--- a/src/backend/InvenTree/InvenTree/tests.py
+++ b/src/backend/InvenTree/InvenTree/tests.py
@@ -435,17 +435,27 @@ class ValidatorTest(TestCase):
             link='www.google.com',
         )
 
+        # Check that a blank URL is acceptable
+        Part.objects.create(
+            name=f'Part {n + 1}', description='Missing link', category=cat, link=''
+        )
+
         # With strict URL validation
         InvenTreeSetting.set_setting('INVENTREE_STRICT_URLS', True, None)
 
         with self.assertRaises(ValidationError):
             Part.objects.create(
-                name=f'Part {n + 1}',
+                name=f'Part {n + 2}',
                 description='Link without schema',
                 category=cat,
                 link='www.google.com',
             )
 
+        # Check that a blank URL is acceptable
+        Part.objects.create(
+            name=f'Part {n + 3}', description='Missing link', category=cat, link=''
+        )
+
 
 class FormatTest(TestCase):
     """Unit tests for custom string formatting functionality."""
diff --git a/src/backend/InvenTree/InvenTree/validators.py b/src/backend/InvenTree/InvenTree/validators.py
index 6b54d99a97..6a0fe6cd9d 100644
--- a/src/backend/InvenTree/InvenTree/validators.py
+++ b/src/backend/InvenTree/InvenTree/validators.py
@@ -65,7 +65,10 @@ class AllowedURLValidator(validators.URLValidator):
         # Determine if 'strict' URL validation is required (i.e. if the URL must have a schema prefix)
         strict_urls = get_global_setting('INVENTREE_STRICT_URLS', cache=False)
 
-        if not strict_urls:
+        if value is not None:
+            value = str(value).strip()
+
+        if value and not strict_urls:
             # Allow URLs which do not have a provided schema
             if '://' not in value:
                 # Validate as if it were http