diff --git a/crates/librqbit/src/api_error.rs b/crates/librqbit/src/api_error.rs
index 3d787db..7f7e4f4 100644
--- a/crates/librqbit/src/api_error.rs
+++ b/crates/librqbit/src/api_error.rs
@@ -11,10 +11,10 @@ pub struct ApiError {
 }
 
 impl ApiError {
-    pub fn new_from_string(status: StatusCode, text: String) -> Self {
+    pub fn new_from_anyhow(status: StatusCode, error: anyhow::Error) -> Self {
         Self {
             status: Some(status),
-            kind: ApiErrorKind::Other(anyhow::anyhow!("{}", text)),
+            kind: ApiErrorKind::Other(error),
             plaintext: false,
         }
     }
diff --git a/crates/librqbit/webui/src/rqbit-web.tsx b/crates/librqbit/webui/src/rqbit-web.tsx
index dcd1032..0fff84f 100644
--- a/crates/librqbit/webui/src/rqbit-web.tsx
+++ b/crates/librqbit/webui/src/rqbit-web.tsx
@@ -401,7 +401,6 @@ const ErrorDetails = (props: { details: ApiErrorDetails | null | undefined }) =>
         {details.statusText && <p><strong>{details.statusText}</strong></p>}
         <pre>{details.text}</pre>
     </>
-
 }
 
 const ErrorComponent = (props: { error: Error | null, remove?: () => void }) => {
diff --git a/desktop/src-tauri/src/main.rs b/desktop/src-tauri/src/main.rs
index 52946a2..e09aaf3 100644
--- a/desktop/src-tauri/src/main.rs
+++ b/desktop/src-tauri/src/main.rs
@@ -1,6 +1,7 @@
 // Prevents additional console window on Windows in release, DO NOT REMOVE!!
 #![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
 
+use anyhow::Context;
 use http::StatusCode;
 use librqbit::{
     api::{
@@ -39,9 +40,10 @@ async fn torrent_create_from_base64_file(
     opts: Option<AddTorrentOptions>,
 ) -> Result<ApiAddTorrentResponse, ApiError> {
     use base64::{engine::general_purpose, Engine as _};
-    let bytes = general_purpose::STANDARD_NO_PAD
+    let bytes = general_purpose::STANDARD
         .decode(&contents)
-        .map_err(|_| ApiError::new_from_string(StatusCode::BAD_REQUEST, "invalid base64".into()))?;
+        .context("invalid base64")
+        .map_err(|e| ApiError::new_from_anyhow(StatusCode::BAD_REQUEST, e))?;
     state
         .api
         .api_add_torrent(