diff --git a/Seeder/source/forms.py b/Seeder/source/forms.py
index 2610f68f..b03c473b 100755
--- a/Seeder/source/forms.py
+++ b/Seeder/source/forms.py
@@ -95,6 +95,13 @@ class Meta:
 
 
 class SeedEdit(forms.ModelForm):
+    def clean_url(self):
+        """ Ensure URL is stripped of whitespace even in older browsers """
+        url = self.cleaned_data["url"]
+        if isinstance(url, str):
+            url = url.strip()
+        return url
+
     class Meta:
         model = models.Seed
         exclude = ['source', 'active']
diff --git a/Seeder/source/migrations/0007_strip_seed_urls_20240718_0951.py b/Seeder/source/migrations/0007_strip_seed_urls_20240718_0951.py
new file mode 100644
index 00000000..dfc9a77a
--- /dev/null
+++ b/Seeder/source/migrations/0007_strip_seed_urls_20240718_0951.py
@@ -0,0 +1,26 @@
+# Generated by Django 2.2.28 on 2024-07-18 09:51
+
+from django.db import migrations
+
+def strip_old_seed_urls(apps, schema_editor):
+    """ Strip spaces from Seed URLs with leading/trailing whitespace """
+    Seed = apps.get_model("source", "Seed")
+    for seed in Seed.objects.filter(url__contains=" "):
+        seed.url = seed.url.strip()
+        seed.save()
+
+def reverse_strip_old_seed_urls(apps, schema_editor):
+    """ I'm not adding spaces back to Seed urls... """
+    pass
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('source', '0006_auto_20220826_1306'),
+    ]
+
+    operations = [
+        migrations.RunPython(strip_old_seed_urls,
+                             reverse_code=reverse_strip_old_seed_urls),
+    ]