From 3464a2727bc3a0465ed21ea5c37f3e78ed8797d2 Mon Sep 17 00:00:00 2001
From: pgaig <87302379+pgaig@users.noreply.github.com>
Date: Fri, 31 Dec 2021 21:58:23 +0100
Subject: [PATCH] [VrtNU] Handle empty title (#2147)

Closes #2146
Authored by: pgaig
---
 yt_dlp/extractor/canvas.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/yt_dlp/extractor/canvas.py b/yt_dlp/extractor/canvas.py
index e97c91929..82fded4e1 100644
--- a/yt_dlp/extractor/canvas.py
+++ b/yt_dlp/extractor/canvas.py
@@ -76,7 +76,7 @@ class CanvasIE(InfoExtractor):
                     'vrtPlayerToken': vrtPlayerToken,
                     'client': 'null',
                 }, expected_status=400)
-            if not data.get('title'):
+            if 'title' not in data:
                 code = data.get('code')
                 if code == 'AUTHENTICATION_REQUIRED':
                     self.raise_login_required()
@@ -84,7 +84,8 @@ class CanvasIE(InfoExtractor):
                     self.raise_geo_restricted(countries=['BE'])
                 raise ExtractorError(data.get('message') or code, expected=True)
 
-        title = data['title']
+        # Note: The title may be an empty string
+        title = data['title'] or f'{site_id} {video_id}'
         description = data.get('description')
 
         formats = []