diff --git a/.changes/fix-dev-server-proxy-url.md b/.changes/fix-dev-server-proxy-url.md
new file mode 100644
index 000000000..733759501
--- /dev/null
+++ b/.changes/fix-dev-server-proxy-url.md
@@ -0,0 +1,5 @@
+---
+"tauri": patch:bug
+---
+
+Fixes mobile dev server proxy request URL with trailing slashes.
diff --git a/crates/tauri/src/protocol/tauri.rs b/crates/tauri/src/protocol/tauri.rs
index a28271c4c..a845d453a 100644
--- a/crates/tauri/src/protocol/tauri.rs
+++ b/crates/tauri/src/protocol/tauri.rs
@@ -102,7 +102,11 @@ fn get_response<R: Runtime>(
     let decoded_path = percent_encoding::percent_decode(path.as_bytes())
       .decode_utf8_lossy()
       .to_string();
-    let url = format!("{url}{decoded_path}");
+    let url = format!(
+      "{}/{}",
+      url.trim_end_matches('/'),
+      decoded_path.trim_start_matches('/')
+    );
 
     let mut proxy_builder = reqwest::ClientBuilder::new()
       .build()