An upload that fails says why: the host and its answer (or the signer's error) in the toast, not just "check your connection", which hid hosts refusing the file and a signer that never answered

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01QjVvE4YAcK3AGwV7kZXeN4

1 files changed, 5 insertions, 1 deletions

diff --git a/src/app.js b/src/app.js
index 6d6933f..9789401 100644
--- a/src/app.js
+++ b/src/app.js
@@ -3939,7 +3939,11 @@ async function publicMediaUpload(file) {
     if (error instanceof MediaUploadError && error.code === 'unauthorized') throw new Error(t('mediaUploadUnauthorized'));
     if (error instanceof MediaUploadError && error.code === 'too-big') throw new Error(t('mediaUploadTooBig'));
     if (error instanceof MediaUploadError && error.code === 'unsupported') throw new Error(t('mediaUploadUnsupported'));
-    throw new Error(t('msgUploadFailed'));
+    // what went wrong, said: "check your connection" alone hid a signer
+    // that never answered and hosts that refused the file
+    const why = String((error instanceof MediaUploadError ? error.details : '') || error?.message || '').slice(0, 200);
+    console.warn('media upload failed', error, why);
+    throw new Error(why && why !== 'failed' ? `${t('msgUploadFailed')} (${why})` : t('msgUploadFailed'));
   } finally {
     ui.mediaProgress = null;
   }