From cb981a73f3be4a7a084ce65cf35038393bc4bac1 Mon Sep 17 00:00:00 2001
From: sepro <sepro@sepr0.com>
Date: Mon, 3 Mar 2025 01:34:01 +0100
Subject: [PATCH] Revert custom header casing code

---
 yt_dlp/extractor/rtp.py     |  5 ++---
 yt_dlp/networking/common.py |  3 +--
 yt_dlp/utils/networking.py  | 16 ----------------
 3 files changed, 3 insertions(+), 21 deletions(-)

diff --git a/yt_dlp/extractor/rtp.py b/yt_dlp/extractor/rtp.py
index 022b4b05e..e4ab26059 100644
--- a/yt_dlp/extractor/rtp.py
+++ b/yt_dlp/extractor/rtp.py
@@ -12,7 +12,6 @@
     parse_iso8601,
     url_or_none,
 )
-from ..utils.networking import CaseSensitiveDict
 from ..utils.traversal import traverse_obj
 
 
@@ -76,13 +75,13 @@ def _fetch_auth_token(self):
             return self._AUTH_TOKEN
         self._AUTH_TOKEN = traverse_obj(self._download_json(Request(
             url='https://rtpplayapi.rtp.pt/play/api/2/token-manager',
-            headers=CaseSensitiveDict({
+            headers={
                 'Accept': '*/*',
                 'rtp-play-auth': 'RTPPLAY_MOBILE_IOS',
                 'rtp-play-auth-hash': 'fac9c328b2f27e26e03d7f8942d66c05b3e59371e16c2a079f5c83cc801bd3ee',
                 'rtp-play-auth-timestamp': '2145973229682',
                 'User-Agent': self._USER_AGENT,
-            })), None, note='Fetching guest auth token', errnote='Could not fetch guest auth token',
+            }), None, note='Fetching guest auth token', errnote='Could not fetch guest auth token',
             fatal=False), ('token', 'token', {str}))
         return self._AUTH_TOKEN
 
diff --git a/yt_dlp/networking/common.py b/yt_dlp/networking/common.py
index d3a5f4e75..e8951c7e7 100644
--- a/yt_dlp/networking/common.py
+++ b/yt_dlp/networking/common.py
@@ -257,8 +257,7 @@ def _make_sslcontext(self, legacy_ssl_support=None):
         )
 
     def _merge_headers(self, request_headers):
-        header_type = type(request_headers) if isinstance(request_headers, HTTPHeaderDict) else HTTPHeaderDict
-        return header_type(self.headers, request_headers)
+        return HTTPHeaderDict(self.headers, request_headers)
 
     def _calculate_timeout(self, request):
         return float(request.extensions.get('timeout') or self.timeout)
diff --git a/yt_dlp/utils/networking.py b/yt_dlp/utils/networking.py
index 96e4b30eb..933b164be 100644
--- a/yt_dlp/utils/networking.py
+++ b/yt_dlp/utils/networking.py
@@ -79,22 +79,6 @@ def __contains__(self, key):
         return super().__contains__(key.title() if isinstance(key, str) else key)
 
 
-class CaseSensitiveDict(HTTPHeaderDict):
-    def __setitem__(self, key, value):
-        if isinstance(value, bytes):
-            value = value.decode('latin-1')
-        self.data[key] = str(value).strip()
-
-    def __getitem__(self, key):
-        return self.data[key]
-
-    def __delitem__(self, key):
-        del self.data[key]
-
-    def __contains__(self, key):
-        return key in self.data
-
-
 std_headers = HTTPHeaderDict({
     'User-Agent': random_user_agent(),
     'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',