Repository: yt-dlp/yt-dlp
File: yt_dlp/extractor/eplus.py (Python)

Code before:

        login_json = self._download_json(
            'https://live.eplus.jp/member/api/v1/FTAuth/idpw', None,
            note='Sending pre-login info', errnote='Unable to send pre-login info', headers={
                'Content-Type': 'application/json; charset=UTF-8',
                'Referer': urlh.url,
                'X-Cltft-Token': cltft_token,
                'Accept': '*/*',
            }, data=json.dumps({
                'loginId': id,
                'loginPassword': password,
            }).encode())
        if not login_json.get('isSuccess'):
            raise ExtractorError('Login failed: Invalid id or password', expected=True)

        self._request_webpage(
            urlh.url, None, note='Logging in', errnote='Unable to log in',
            data=urlencode_postdata({
                'loginId': id,
                'loginPassword': password,
                'Token.Default': cltft_token,
                'op': 'nextPage',
            }), headers={
                'Content-Type': 'application/x-www-form-urlencoded',
                'Referer': urlh.url,
            })

    def _real_extract(self, url):
        video_id = self._match_id(url)
        webpage, urlh = self._download_webpage_handle(
            url, video_id, headers={'User-Agent': self._USER_AGENT})
        if urlh.url.startswith('https://live.eplus.jp/member/auth'):
            self.raise_login_required()

        data_json = self._search_json(r'<script>\s*var app\s*=', webpage, 'data json', video_id)

        if data_json.get('drm_mode') == 'ON':
            self.report_drm(video_id)

        delivery_status = data_json.get('delivery_status')
        archive_mode = data_json.get('archive_mode')
        release_timestamp = try_call(lambda: unified_timestamp(data_json['event_datetime']) - 32400)
        release_timestamp_str = data_json.get('event_datetime_text')  # JST

        self.write_debug(f'delivery_status = {delivery_status}, archive_mode = {archive_mode}')

        if delivery_status == 'PREPARING':
            live_status = 'is_upcoming'
        elif delivery_status == 'STARTED':
            live_status = 'is_live'
        elif delivery_status == 'STOPPED':

Review comment (suggestion):
`'Content-Type': 'application/x-www-form-urlencoded'` is added by default with POST requests
```suggestion
            }), headers={'Referer': urlh.url})
```

Code after:
                'Content-Type': 'application/json; charset=UTF-8',
                'Referer': urlh.url,
                'X-Cltft-Token': cltft_token,
                'Accept': '*/*',
            }, data=json.dumps({
                'loginId': username,
                'loginPassword': password,
            }).encode())
        if not login_json.get('isSuccess'):
            raise ExtractorError('Login failed: Invalid id or password', expected=True)

        self._request_webpage(
            urlh.url, None, note='Logging in', errnote='Unable to log in',
            data=urlencode_postdata({
                'loginId': username,
                'loginPassword': password,
                'Token.Default': cltft_token,
                'op': 'nextPage',
            }), headers={'Referer': urlh.url})

    def _real_extract(self, url):
        video_id = self._match_id(url)
        webpage, urlh = self._download_webpage_handle(
            url, video_id, headers={'User-Agent': self._USER_AGENT})
        if urlh.url.startswith('https://live.eplus.jp/member/auth'):
            username, password = self._get_login_info()
            if not username:
                self.raise_login_required()
            self._login(username, password, urlh)
            webpage = self._download_webpage(
                url, video_id, headers={'User-Agent': self._USER_AGENT})

        data_json = self._search_json(r'<script>\s*var app\s*=', webpage, 'data json', video_id)

        if data_json.get('drm_mode') == 'ON':
            self.report_drm(video_id)

        delivery_status = data_json.get('delivery_status')
        archive_mode = data_json.get('archive_mode')
        release_timestamp = try_call(lambda: unified_timestamp(data_json['event_datetime']) - 32400)
        release_timestamp_str = data_json.get('event_datetime_text')  # JST

        self.write_debug(f'delivery_status = {delivery_status}, archive_mode = {archive_mode}')

        if delivery_status == 'PREPARING':
            live_status = 'is_upcoming'
        elif delivery_status == 'STARTED':
            live_status = 'is_live'
        elif delivery_status == 'STOPPED':
            if archive_mode != 'ON':
                raise ExtractorError(