From 98d71d8c5e5dab08b561ee6f137e968d2a004262 Mon Sep 17 00:00:00 2001
From: sepro <4618135+seproDev@users.noreply.github.com>
Date: Fri, 10 May 2024 19:20:55 +0200
Subject: [PATCH] [ie/commonmistakes] Raise error on blob URLs (#9897)

Authored by: seproDev
---
 yt_dlp/extractor/_extractors.py    |  6 +++++-
 yt_dlp/extractor/commonmistakes.py | 16 ++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/yt_dlp/extractor/_extractors.py b/yt_dlp/extractor/_extractors.py
index 42034275b9..1f095c932a 100644
--- a/yt_dlp/extractor/_extractors.py
+++ b/yt_dlp/extractor/_extractors.py
@@ -387,7 +387,11 @@
     ComedyCentralIE,
     ComedyCentralTVIE,
 )
-from .commonmistakes import CommonMistakesIE, UnicodeBOMIE
+from .commonmistakes import (
+    BlobIE,
+    CommonMistakesIE,
+    UnicodeBOMIE,
+)
 from .commonprotocols import (
     MmsIE,
     RtmpIE,
diff --git a/yt_dlp/extractor/commonmistakes.py b/yt_dlp/extractor/commonmistakes.py
index 1d3b61c732..4514424e8e 100644
--- a/yt_dlp/extractor/commonmistakes.py
+++ b/yt_dlp/extractor/commonmistakes.py
@@ -40,3 +40,19 @@ def _real_extract(self, url):
             'Your URL starts with a Byte Order Mark (BOM). '
             'Removing the BOM and looking for "%s" ...' % real_url)
         return self.url_result(real_url)
+
+
+class BlobIE(InfoExtractor):
+    IE_DESC = False
+    _VALID_URL = r'blob:'
+
+    _TESTS = [{
+        'url': 'blob:https://www.youtube.com/4eb3d090-a761-46e6-8083-c32016a36e3b',
+        'only_matching': True,
+    }]
+
+    def _real_extract(self, url):
+        raise ExtractorError(
+            'You\'ve asked yt-dlp to download a blob URL. '
+            'A blob URL exists only locally in your browser. '
+            'It is not possible for yt-dlp to access it.', expected=True)