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470428.user.js
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// ==UserScript==
// @name YouTube EXPERIMENT_FLAGS Tamer
// @namespace UserScripts
// @match https://www.youtube.com/*
// @version 1.6.12
// @license MIT
// @author CY Fung
// @icon https://raw.githubusercontent.com/cyfung1031/userscript-supports/main/icons/yt-engine.png
// @description Adjust EXPERIMENT_FLAGS
// @grant none
// @unwrap
// @run-at document-start
// @allFrames true
// @inject-into page
// @require https://update.greasyfork.org/scripts/475632/1361351/ytConfigHacks.js
// ==/UserScript==
(() => {
// Purpose 1: Remove Obsolete Flags
// Purpose 2: Remove Flags bring no visual difference
// Purpose 3: Enable Flags bring performance boost
const DISABLE_CINEMATICS = false; // standard design
const NO_SerializedExperiment = false;
const KEEP_PLAYER_QUALITY_STICKY = true; // see https://greasyfork.org/scripts/471033/
const DISABLE_serializedExperimentIds = true;
const DISABLE_serializedExperimentFlags = true;
const IGNORE_VIDEO_SOURCE_RELATED = true;
const NO_REFRESH = true;
const ENABLE_MINOR_CHAT_FEATURE_UPGRADE = true;
const ENABLE_EMOJI_PICKER_NEW_STYLE = false;
const ENABLE_BADGE_STYLE = false;
const NO_DESKTOP_DELAY_PLAYER_RESIZING = false;
const NO_ANIMATED_LIKE = false;
const KEEP_MIDDLEWAVE = true;
const NO_CINEMATIC_LIGHTING_LABEL = false; // set true to show "Ambient Mode" label instead of "Cinematic lighting" Label
const KEEP_unified_player = true; // for YouTube Audio Only
const SET_POLYMER_FLAGS = true;
const FLAG_STRATEGY_01 = true; // ignore ads related flags
const FLAG_STRATEGY_02 = true; // ignore player related flags
const FLAG_STRATEGY_03 = true; // ignore adblock related flags
const FLAG_STRATEGY_20240413 = true; // ignore adblock related flags
const FLAG_STRATEGY_20240503 = true; // AD FLAG
const NO_DEBUG_FLAG = true;
const FLAG_SKIP_CHAT_BUTTON = true;
const ALLOW_FLAGS_202404 = true;
const DISABLE_FLAGS_SHADYDOM_FREE = true;
const ENABLE_EXPERIMENT_FLAGS_MAINTAIN_STABLE_LIST = {
defaultValue: true, // performance boost
useExternal: () => typeof localStorage.EXPERIMENT_FLAGS_MAINTAIN_STABLE_LIST !== 'undefined',
externalValue: () => (+localStorage.EXPERIMENT_FLAGS_MAINTAIN_STABLE_LIST ? true : false)
};
const ENABLE_EXPERIMENT_FLAGS_MAINTAIN_REUSE_COMPONENTS = {
defaultValue: true, // not sure
useExternal: () => typeof localStorage.EXPERIMENT_FLAGS_MAINTAIN_REUSE_COMPONENTS !== 'undefined',
externalValue: () => (+localStorage.EXPERIMENT_FLAGS_MAINTAIN_REUSE_COMPONENTS ? true : false)
};
const ENABLE_EXPERIMENT_FLAGS_DEFER_DETACH = {
defaultValue: true, // not sure
useExternal: () => typeof localStorage.ENABLE_EXPERIMENT_FLAGS_DEFER_DETACH !== 'undefined',
externalValue: () => (+localStorage.ENABLE_EXPERIMENT_FLAGS_DEFER_DETACH ? true : false)
};
const ENABLE_EXPERIMENT_FLAGS_NO_AUTOPLAY_TOGGLE = {
defaultValue: false, // true to remove autoplay toggle button
useExternal: () => typeof localStorage.ENABLE_EXPERIMENT_FLAGS_NO_AUTOPLAY_TOGGLE !== 'undefined',
externalValue: () => (+localStorage.ENABLE_EXPERIMENT_FLAGS_NO_AUTOPLAY_TOGGLE ? true : false)
};
const ALLOW_ALL_LIVE_CHATS_FLAGS = false;
const USE_MAINTAIN_STABLE_LIST_ONLY_WHEN_KS_FLAG_IS_SET = false;
const COMMENTS_NO_DELAY = true;
const SPACEBAR_CONTROL = -1; // 0 - only scroll down; 1 - global pause; 2 - speed control pause;
// -1 = by pass
const ALLOW_THEATER_PLAYER_SHORTCUT_KEY_T = true;
const USE_byPassConditionAnalyzer = false;
// ----------------------------- FOR FINDING OUT THE NEW FLAG -------------------------------
const byPassConditionAnalyzer = (() => {
// This is to find the flags disabled by this script would cause your issue.
// Goal: find the flag name to whitelist
const testFn = (key, isVideoPlayerParams) => {
const kl = key.length;
const kl7 = kl % 7;
const kl5 = kl % 5;
const kl3 = kl % 3;
const kl2 = kl % 2;
// ture for by pass
const byConditions = [
!kl2,
kl3 <= 1,
kl5 >= 3,
kl7 >= 4,
kl >= 20,
kl <= 40,
[
"clean_up_manual_attribution_header",
"empty_attributed_string_killswitch",
"enable_profile_cards_cairo_updates",
"enable_teaser_framework_web_client",
"enable_tectonic_ad_ux_for_halftime",
"enable_web_shorts_save_audio_pivot",
"kevlar_clear_duplicate_pref_cookie",
"kevlar_disable_background_prefetch",
"kevlar_transcript_engagement_panel",
"kevlar_watch_flexy_theater_manager",
"mdx_load_cast_api_bootstrap_script",
"web_collab_playlist_thumbnail_size",
"web_fix_back_button_player_loading",
"web_fix_dynamic_metadata_diacritic",
"web_kevlar_enable_adaptive_signals",
"web_move_autoplay_video_under_chip",
"web_player_small_hbp_settings_menu",
"web_rendererstamper_event_listener",
"web_shorts_skip_loading_same_index",
"web_shorts_suggested_action_no_bvm",
"web_use_updated_icon_for_oac_badge",
"wiz_prevent_watched_double_logging"
]
];
// const byConditions = [
// !kl2,
// kl3 <= 1,
// kl5 >= 3,
// kl7 >= 4,
// kl >= 20,
// kl <= 40,
// [
// "clean_up_manual_attribution_header",
// "empty_attributed_string_killswitch",
// "enable_profile_cards_cairo_updates",
// "enable_teaser_framework_web_client",
// "enable_tectonic_ad_ux_for_halftime",
// "enable_web_shorts_save_audio_pivot",
// "kevlar_clear_duplicate_pref_cookie",
// "kevlar_disable_background_prefetch",
// "kevlar_transcript_engagement_panel",
// "kevlar_watch_flexy_theater_manager",
// "mdx_load_cast_api_bootstrap_script",
// "web_collab_playlist_thumbnail_size",
// "web_fix_back_button_player_loading",
// "web_fix_dynamic_metadata_diacritic",
// "web_kevlar_enable_adaptive_signals",
// "web_move_autoplay_video_under_chip",
// "web_player_small_hbp_settings_menu",
// "web_rendererstamper_event_listener",
// "web_shorts_skip_loading_same_index",
// "web_shorts_suggested_action_no_bvm",
// "web_use_updated_icon_for_oac_badge",
// "wiz_prevent_watched_double_logging"
// ]
// ];
return byConditions;
};
let u = 0;
let cache1 = new Set();
let cache2 = new Set();
const disp = () => {
const q = cache1.size < 50 ? [...cache1] : [];
const a = [];
const b = [];
for (const m of q) {
if (cache2.has(m)) b.push(m); else a.push(m);
}
console.log('[yt-flags-tamer]', 'filtered keys {eflags}', a.length, a);
console.log('[yt-flags-tamer]', 'filtered keys {vflags}', b.length, b);
}
const res = {
testFn_: (key, isVideoPlayerParams) => {
if (!u) {
u = 1;
u = setTimeout(disp, 400);
}
let q = testFn(key, isVideoPlayerParams).every(e => {
if (typeof e === 'object' && Symbol.iterator in Object(e)) {
return e.includes(key);
} else if (typeof e === 'string') {
return e.includes(key);
} else {
return !!e
}
});
if (q) {
cache1.add(key);
return true;
}
return false;
}
}
return res;
})();
// ----------------------------- FOR FINDING OUT THE NEW FLAG -------------------------------
// TBC
// kevlar_tuner_should_always_use_device_pixel_ratio
// kevlar_tuner_should_clamp_device_pixel_ratio
// kevlar_tuner_clamp_device_pixel_ratio
// kevlar_tuner_should_use_thumbnail_factor
// kevlar_tuner_thumbnail_factor
// kevlar_tuner_min_thumbnail_quality
// kevlar_tuner_max_thumbnail_quality
// kevlar_tuner_should_test_visibility_time_between_jobs
// kevlar_tuner_visibility_time_between_jobs_ms
// kevlar_tuner_default_comments_delay
// kevlar_tuner_run_default_comments_delay
// cinematic feature is no longer an experimental feature.
// It has been officially implemented.
// To disable cinematics, the user shall use other userscripts or just turn off the option in the video options.
const getSettingValue = (fm) => fm.useExternal() ? fm.externalValue() : fm.defaultValue;
const win = this instanceof Window ? this : window;
// Create a unique key for the script and check if it is already running
const hkey_script = 'jmimcvowrlzl';
if (win[hkey_script]) throw new Error('Duplicated Userscript Calling'); // avoid duplicated scripting
win[hkey_script] = true;
/** @type {globalThis.PromiseConstructor} */
const Promise = ((async () => { })()).constructor;
let isMainWindow = false;
const mzFlagDetected1 = new Set();
const mzFlagDetected2 = new Set();
let zPlayerKevlar = false;
try {
isMainWindow = window.document === window.top.document
} catch (e) { }
const fOperAccept = Symbol();
const fOperReject = Symbol();
// h5 flags
const fOperAcceptList = new Set([
...(NO_CINEMATIC_LIGHTING_LABEL ? [
'web_player_use_cinematic_label', // fallback
'web_player_use_cinematic_label_0', // fallback
'web_player_use_cinematic_label_1', // fallback
'web_player_use_cinematic_label_2',
'web_player_use_cinematic_label_3', // fallback
] : []),
...(FLAG_STRATEGY_03 ? [
// do it with your separate script please
'ab_pl_man', // https://www.uedbox.com/post/69238/
'ab_fk_sk_cl', // https://www.youtube.com/s/desktop/28b0985e/jsbin/desktop_polymer.vflset/desktop_polymer.js
'ab_det_apb_b',
'ab_det_el_h',
'ab_det_fet_wr',
'ab_det_fet_wr_en',
'ab_det_gen_re',
'web_enable_ab_rsp_cl',
'enable_ab_rp_int',
'enable_ab_report_on_errorscreen',
'enable_pl_r_si_fa',
'ab_det_sc_inj_enf',
'service_worker_enabled', // https://gist.github.com/BrokenGabe/51d55a11c2090d9402e40f12a6ece275
'ab_deg_unex_thr', // https://www.youtube.com/s/desktop/28b0985e/jsbin/desktop_polymer.vflset/desktop_polymer.js
'ab_net_tp_e', // https://www.youtube.com/s/desktop/28b0985e/jsbin/desktop_polymer.vflset/desktop_polymer.js
'ad_net_pb_ab', // https://www.youtube.com/s/desktop/28b0985e/jsbin/desktop_polymer.vflset/desktop_polymer.js
'ab_mis_log_err', // https://www.youtube.com/s/desktop/28b0985e/jsbin/desktop_polymer.vflset/desktop_polymer.js
'ad_net_pb_pbp',
'ab_det_sc_inj',
'ab_det_sc_inj_val',
'disable_enf_isd',
'ks_det_gpbl',
'ks_get_o_pp',
'ab_deg_unex_thr',
'enable_pl_r_si_fa',
'debug_sk_em_precheck',
] : []),
...(FLAG_STRATEGY_01 ? [
'web_player_defer_modules',
'html5_defer_modules_on_ads_only',
'web_player_defer_ad',
'disable_defer_admodule_on_advertiser_video',
'html5_onesie_defer_content_loader_ms',
'html5_defer_fetch_att_ms',
'embeds_web_enable_defer_loading_remote_js',
] : []),
...(KEEP_MIDDLEWAVE ? [
'web_player_entities_middleware'
] : []),
'web_settings_menu_icons',
// see https://github.com/cyfung1031/userscript-supports/issues/27
// see https://greasyfork.org/scripts/470428/discussions/216363
// 'disable_new_pause_state3',
// 'enable_cast_on_music_web',
// 'gcf_config_store_enabled',
// 'gel_queue_timeout_max_ms',
// 'network_polling_interval',
'player_doubletap_to_seek',
// 'polymer_bad_build_labels',
// 'skip_invalid_ytcsi_ticks',
// 'use_player_cue_range_set',
// 'woffle_used_state_report',
]);
const fOperMapFn = (o) => new Map(Object.entries({
// 1 true 2 false 3
...((o.no_autoplay_toggle !== true) ? {
// 'player_allow_autonav_after_playlist',
'web_player_autonav_toggle_always_listen': 1,
// 'web_player_offline_playlist_auto_refresh',
// 'allow_live_autoplay',
// 'allow_poltergust_autoplay',
// 'autoplay_time',
// 'autoplay_time_for_fullscreen',
// 'autoplay_time_for_music_content',
'client_respect_autoplay_switch_button_renderer': 1,
// 'embeds_enable_muted_autoplay',
// 'embeds_web_enable_autoplay_not_supported_logging_fix',
// 'embeds_web_enable_log_splay_as_autoplay',
// 'embeds_web_enable_mobile_autoplay',
// 'html5_autoplay_default_quality_cap',
// 'mweb_muted_autoplay_animation',
// 'html5_player_autonav_logging',
// 'web_player_always_enable_auto_translation',
// 'web_player_autonav_empty_suggestions_fix',
// 'web_player_autonav_use_server_provided_state',
'web_player_decouple_autonav': 1,
'web_player_move_autonav_toggle': 1,
} : {}),
...(IGNORE_VIDEO_SOURCE_RELATED ? {
'html5_live_use_alternate_bandwidth_window_sizes': 1,
'html5_live_ultra_low_latency_bandwidth_window': 1,
'html5_live_low_latency_bandwidth_window': 1,
'html5_live_normal_latency_bandwidth_window': 1,
// 'html5_skip_slow_ad_delay_ms': 1,
'html5_player_preload_ad_fix': 1,
// if (key.includes('_ad_') || key.includes('_ads_')) {
'html5_ssdai_adfetch_dynamic_timeout_ms': 2,
'html5_log_ssdai_fallback_ads': 2,
'html5_deprecate_adservice': 2,
// !key.includes('deprecat')) keep = true;
// if (key.startsWith('enable_h5_player_ad_block_')) keep = false;
'fix_h5_toggle_button_a11y': 1,
'h5_companion_enable_adcpn_macro_substitution_for_click_pings': 2,
'h5_enable_generic_error_logging_event': 2,
'h5_enable_unified_csi_preroll': 1,
'h5_reset_cache_and_filter_before_update_masthead': 1,
'web_player_enable_premium_hbr_in_h5_api': 1,
// !key.includes('deprecat')) keep = true;
} : {}),
...(KEEP_PLAYER_QUALITY_STICKY ? {
html5_onesie_sticky_server_side: 2,
html5_perf_cap_override_sticky: 1,
html5_ustreamer_cap_override_sticky: 1,
html5_exponential_memory_for_sticky: 1
} : {}),
'html5_streaming_xhr_time_based_consolidation_ms': 1,
'html5_bypass_contention_secs': 1,
'vp9_drm_live': 1,
'html5_log_rebuffer_reason': 2,
'html5_enable_audio_track_log': 2,
'html5_safari_desktop_eme_min_version': 1,
'html5_disable_av1': 1,
'html5_disable_av1_hdr': 1,
'html5_disable_hfr_when_vp9_encrypted_2k4k_unsupported': 1,
'html5_account_onesie_format_selection_during_format_filter': 1,
'html5_prefer_hbr_vp9_over_av1': 1,
...(!DISABLE_CINEMATICS ? {
'web_cinematic_watch_settings': 1
} : {}),
'html5_apply_start_time_within_ads_for_ssdai_transitions': 2,
'html5_enable_ads_client_monitoring_log_tv': 2,
'html5_ignore_interruptive_ads_for_server_stitched': 1,
'html5_no_video_to_ad_on_preroll': 1,
'html5_no_video_to_ad_on_preroll_reset': 1,
'html5_rebase_video_to_ad_timeline': 1,
'html5_report_slow_ads_as_error': 1,
'html5_default_ad_gain': 1, // just keep
'html5_min_startup_buffered_ad_media_duration_secs': 1, // just keep
'html5_skip_slow_ad_delay_ms': 7,
'check_navigator_accuracy_timeout_ms': 8,
'html5_ad_timeout_ms': 8,
'html5_ads_preroll_lock_timeout_delay_ms': 9,
'html5_slow_start_timeout_delay_ms': 8,
'variable_buffer_timeout_ms': 9,
'h5_expr_b9Nkc': 1,
}));
var fOperMap;
const valur = (value, k) => {
if (+value === 0) value = k;
else if (+value > +k) value = k;
return value;
}
function fOper(key, value) {
if (fOperAcceptList.has(key)) return fOperAccept;
if (USE_byPassConditionAnalyzer && byPassConditionAnalyzer.testFn_(key, true)) return fOperAccept;
if (key.length === 22 || key.length === 27 || key.length === 32) {
if (SPACEBAR_CONTROL < 0) {
if (key === 'disable_space_scroll_fix' || key === 'global_spacebar_pause' || key === 'web_speedmaster_spacebar_control') {
return fOperAccept;
}
if (key.includes('speedmaster')) return fOperAccept;
}
if (SPACEBAR_CONTROL === 2 && key.includes('speedmaster')) {
return fOperAccept;
}
}
// if(key.length < 30)continue;
// const kl = key.length;
let keep = false;
let nv = undefined;
const no_autoplay_toggle = ENABLE_EXPERIMENT_FLAGS_NO_AUTOPLAY_TOGGLE.currentValue;
fOperMap = fOperMap || fOperMapFn({ no_autoplay_toggle });
const fm1 = fOperMap.get(key);
switch (fm1) {
case 1:
keep = true;
break;
case 2:
keep = false;
break;
case 7:
const kv = typeof value === 'string' && +value > 2;
keep = kv;
if (kv && +value > 4) nv = '4';
break;
case 8:
nv = valur(value, '4');
keep = true;
break;
case 9:
keep = false;
break;
default:
if (FLAG_STRATEGY_20240413 && key.includes('network')) keep = true;
else if (FLAG_STRATEGY_20240413 && key.includes('less')) keep = true;
else if (FLAG_STRATEGY_20240413 && key.includes('latency')) keep = true;
else if (FLAG_STRATEGY_20240413 && key.includes('slow')) keep = true;
else if (FLAG_STRATEGY_20240413 && key.includes('steam')) keep = true;
else if (key.includes('deprecat')) {
keep = false;
} else if (IGNORE_VIDEO_SOURCE_RELATED && key.includes('html5_') && !key.includes('_ad_') && !key.includes('_ads_')) {
keep = true;
} else if (IGNORE_VIDEO_SOURCE_RELATED && key.includes('h5_')) {
keep = true;
} else if (key.includes('_timeout') && typeof value === 'string') {
if (+value > 3000) nv = '3000';
keep = true;
} else if (KEEP_PLAYER_QUALITY_STICKY && key.includes('_sticky')) {
keep = true;
} else if (key.startsWith('h5_expr_')) {
// by userscript
keep = true;
}
}
if (!keep) {
return fOperReject;
// vRes.delete(key);
} else if (nv !== undefined && nv !== value) {
return nv;
// vRes.set(key, nv)
} else {
return fOperAccept;
}
}
function deSerialized(str, fOper) {
const map = new Map();
let start = 0;
while (start < str.length) {
// Find the next '&' or the end of the string
const nextAmpersand = str.indexOf('&', start);
const end = nextAmpersand === -1 ? str.length : nextAmpersand;
// Extract the key-value pair
const equalsSign = str.indexOf('=', start);
if (equalsSign !== -1 && equalsSign < end) {
const key = str.substring(start, equalsSign);
const value = str.substring(equalsSign + 1, end);
const r = fOper(key, value);
if (typeof r !== 'symbol') {
map.set(key, r)
} else if (r === fOperAccept) {
map.set(key, value);
}
}
// Move to the next key-value pair
start = end + 1;
}
map.toString = function () {
const res = new Array(map.size);
let i = 0;
this.forEach((value, key) => {
res[i++] = `${key}=${value}`;
});
return res.join('&');
}
return map;
}
function fixSerializedExperiment(conf) {
const supportAV1 = window.MediaSource.isTypeSupported('video/webm; codecs=av01.0.05M.08');
const supportVP9 = window.MediaSource.isTypeSupported('video/webm; codecs=vp09.01.20.08.01.01.01.01.00');
if (DISABLE_serializedExperimentIds && typeof conf.serializedExperimentIds === 'string') {
let ids = conf.serializedExperimentIds.split(',');
let newIds = [];
for (const id of ids) {
let keep = false;
if (keep) {
newIds.push(id);
}
}
conf.serializedExperimentIds = newIds.join(',');
}
const mez = (mRes) => {
mRes.set('html5_disable_low_pipeline', 'false');
mRes.set('html5_min_startup_buffered_ad_media_duration_secs', '0')
if (supportAV1 === false && localStorage['yt-player-av1-pref'] === '-1') {
mRes.set('html5_disable_av1', 'true');
mRes.set('html5_disable_av1_hdr', 'true');
mRes.set('html5_prefer_hbr_vp9_over_av1', 'true');
} else if (supportAV1 === true && supportVP9 === true && localStorage['yt-player-av1-pref'] === '8192') {
mRes.set('html5_disable_av1', 'false');
mRes.set('html5_disable_av1_hdr', 'false');
mRes.set('html5_prefer_hbr_vp9_over_av1', 'false');
}
// html5_perf_cap_override_sticky = true;
// html5_perserve_av1_perf_cap = true;
mRes.set('html5_enable_server_format_filter', 'true')
mRes.set('html5_use_ump', 'true')
mRes.set('html5_live_defrag_only_h264_playbacks', 'true')
mRes.set('html5_live_defrag_only_h264_formats', 'true')
mRes.set('html5_disable_protected_hdr', 'false')
mRes.set('html5_disable_vp9_encrypted', 'false')
mRes.set('html5_ignore_h264_framerate_cap', 'true')
mRes.set('html5_allow_asmjs', 'true')
// mRes.set('html5_defer_modules_on_ads_only', 'true')
mRes.set('html5_use_drm_retry', 'true')
mRes.set('html5_delta_encode_fexp', 'true')
mRes.set('html5_only_send_cas_health_pings', 'true')
mRes.set('html5_modify_caption_vss_logging', 'true')
// mRes.set('html5_allow_zero_duration_ads_on_timeline', 'true')
mRes.set('html5_reset_daistate_on_audio_codec_change', 'true')
mRes.set('html5_enable_safari_fairplay', 'true')
mRes.set('html5_safari_fairplay_ignore_hdcp', 'true')
mRes.set('html5_enable_vp9_fairplay', 'true')
mRes.set('html5_eme_loader_sync', 'true')
mRes.set('html5_enable_same_language_id_matching', 'true');
mRes.set('html5_enable_new_hvc_enc', 'true')
mRes.set('html5_enable_ssap', 'true')
mRes.set('html5_enable_short_gapless', 'true')
mRes.set('html5_enable_aac51', 'true')
mRes.set('html5_enable_ssap_entity_id', 'true')
mRes.set('html5_high_res_logging_always', 'true')
mRes.set('html5_local_playsinline', 'true')
mRes.set('html5_disable_media_element_loop_on_tv', 'true')
mRes.set('html5_native_audio_track_switching', 'true')
mRes.set('html5_format_hybridization', 'true')
mRes.set('html5_disable_encrypted_vp9_live_non_2k_4k', 'false')
// mRes.set('html5_default_ad_gain', 'false')
mRes.set('html5_use_sabr_requests_for_debugging', 'false')
// mRes.set('html5_enable_sabr_live_streaming_xhr', 'true')
// mRes.set('html5_sabr_live_ultra_low_latency', 'true')
// mRes.set('html5_sabr_live_low_latency', 'true')
// mRes.set('html5_sabr_live', 'true') // sabr_live for audio only
mRes.set('html5_sabr_post_live', 'true')
mRes.set('html5_sabr_premiere', 'true')
// mRes.set('html5_enable_sabr_live_streaming_xhr', 'true')
// mRes.set('html5_enable_sabr_live_non_streaming_xhr', 'true')
mRes.set('html5_enable_subsegment_readahead_v3', 'true')
mRes.set('html5_ultra_low_latency_subsegment_readahead', 'true')
mRes.set('html5_disable_move_pssh_to_moov', 'true')
mRes.set('html5_modern_vp9_mime_type', 'true')
}
if (DISABLE_serializedExperimentFlags && typeof conf.serializedExperimentFlags === 'string') {
const fg = conf.serializedExperimentFlags;
const vRes = deSerialized(fg, fOper);
mez(vRes);
const kg = vRes.toString();
conf.serializedExperimentFlags = kg;
}
}
let brc = 1000;
if (typeof AbortSignal !== 'undefined') {
document.addEventListener('yt-action', function () {
if (brc > 8) looperFn();
brc = 0;
}, { capture: true, passive: true, once: true });
}
// yt flags
const cachedSetFn = (o) => {
const { use_maintain_stable_list, use_maintain_reuse_components, use_defer_detach } = o;
const BY_PASS = [
'enable_profile_cards_on_comments',
... (SPACEBAR_CONTROL < 0 ? [
'disable_space_scroll_fix',
'global_spacebar_pause',
'web_speedmaster_spacebar_control'
] : []),
...(ALLOW_FLAGS_202404 ? [
'suppress_error_204_logging',
'use_request_time_ms_header',
'remove_masthead_channel_banner_on_refresh',
'action_companion_center_align_description',
'disable_child_node_auto_formatted_strings',
// 'enable_native_bridge_view_saved_playables',
'enable_shadydom_free_scoped_query_methods',
// 'enable_skippable_ads_for_unplugged_ad_pod',
'enable_sparkles_web_clickable_description',
'enable_window_constrained_buy_flow_dialog',
// 'html5_enable_ads_client_monitoring_log_tv',
'is_part_of_any_user_engagement_experiment',
// 'kevlar_chapters_list_view_seek_by_chapter',
// 'kevlar_enable_shorts_prefetch_in_sequence',
// 'kevlar_resolve_command_for_confirm_dialog',
// 'kevlar_shorts_seedless_retry_initial_load',
// 'live_chat_enable_send_button_in_slow_mode',
// 'live_chat_web_use_emoji_manager_singleton',
'remove_masthead_channel_banner_on_refresh',
// 'web_deprecate_service_ajax_map_dependency',
'web_modern_player_settings_quality_bottom',
// 'web_player_always_enable_auto_translation',
// 'web_player_enable_cultural_moment_overlay',
// 'ytidb_fetch_datasync_ids_for_data_cleanup',
'kevlar_tuner_should_test_reuse_components',
'web_player_ve_conversion_fixes_for_channel_info',
'web_watch_updated_metadata_server_initial_delay',
// 'trigger_impression_pings_on_view_search_desktop',
'defer_menus',
] : []),
...(FLAG_SKIP_CHAT_BUTTON ? [
'live_chat_overflow_hide_chat',
'web_watch_chat_hide_button_killswitch',
] : []),
...(KEEP_unified_player ? [
'kevlar_unified_player',
'kevlar_non_watch_unified_player',
] : []),
...(FLAG_STRATEGY_03 ? [
// do it with your separate script please
'ab_pl_man', // https://www.uedbox.com/post/69238/
'ab_fk_sk_cl', // https://www.youtube.com/s/desktop/28b0985e/jsbin/desktop_polymer.vflset/desktop_polymer.js
'ab_det_apb_b',
'ab_det_el_h',
'ab_det_fet_wr',
'ab_det_fet_wr_en',
'ab_det_gen_re',
'web_enable_ab_rsp_cl',
'enable_ab_rp_int',
'enable_ab_report_on_errorscreen',
'enable_pl_r_si_fa',
'ab_det_sc_inj_enf',
'service_worker_enabled', // https://gist.github.com/BrokenGabe/51d55a11c2090d9402e40f12a6ece275
'ab_deg_unex_thr', // https://www.youtube.com/s/desktop/28b0985e/jsbin/desktop_polymer.vflset/desktop_polymer.js
'ab_net_tp_e', // https://www.youtube.com/s/desktop/28b0985e/jsbin/desktop_polymer.vflset/desktop_polymer.js
'ad_net_pb_ab', // https://www.youtube.com/s/desktop/28b0985e/jsbin/desktop_polymer.vflset/desktop_polymer.js
'ab_mis_log_err', // https://www.youtube.com/s/desktop/28b0985e/jsbin/desktop_polymer.vflset/desktop_polymer.js
'ab_det_sc_inj',
'ab_det_sc_inj_val',
'disable_enf_isd',
'ks_det_gpbl',
'ks_get_o_pp',
'ab_deg_unex_thr',
'enable_pl_r_si_fa',
'debug_sk_em_precheck',
] : []),
...(FLAG_STRATEGY_02 ? [
// do it with your separate script please
'kevlar_client_enable_shorts_player_bootstrap',
'kevlar_early_popup_close',
'kevlar_hide_pp_url_param',
'kevlar_touch_gesture_ves',
'player_doubletap_to_seek',
'shorts_controller_retrieve_seedless_sequence',
'shorts_overlay_reshuffle',
] : []),
...(SET_POLYMER_FLAGS ? [
'polymer_enable_mdx_queue',
'polymer_on_demand_shady_dom',
] : []),
...(FLAG_STRATEGY_01 ? [
'web_player_defer_modules',
'html5_defer_modules_on_ads_only',
'web_player_defer_ad',
'disable_defer_admodule_on_advertiser_video',
'html5_onesie_defer_content_loader_ms',
'html5_defer_fetch_att_ms',
'embeds_web_enable_defer_loading_remote_js',
] : []),
...(KEEP_MIDDLEWAVE ? [
'web_player_entities_middleware'
] : []),
'desktop_keyboard_capture_keydown_killswitch', // TBC
'kevlar_autofocus_menu_on_keyboard_nav', // TBC
'kevlar_keyboard_button_focus', // TBC
'kevlar_macro_markers_keyboard_shortcut', // required
// 'kevlar_appbehavior_attach_startup_tasks'
// 'kevlar_clear_non_displayable_url_params'
'kevlar_command_handler_formatted_string', // see https://github.com/cyfung1031/userscript-supports/issues/20
'kevlar_miniplayer_queue_user_activation',
'kevlar_player_watch_endpoint_navigation',
// 'kevlar_watch_focus_on_engagement_panels'
// playlist related flags
"shorts_in_playlists_web",
"live_chat_over_playlist",
"web_amsterdam_playlists",
"browse_next_continuations_migration_playlist",
"desktop_add_to_playlist_renderer_dialog_popup",
"enable_horizontal_list_renderer_scroll_based_on_items_visibility",
"enable_pass_sdc_get_accounts_list",
"enable_programmed_playlist_color_sample",
"enable_programmed_playlist_redesign",
"enable_section_list_scroll_to_item_section_web",
"gda_enable_playlist_download",
"include_autoplay_count_in_playlists",
"kevlar_chapters_list_view_seek_by_chapter",
"kevlar_enable_editable_playlists",
"kevlar_enable_reorderable_playlists",
"kevlar_fix_playlist_continuation",
"kevlar_hide_playlist_playback_status",
"kevlar_lazy_list_resume_for_autofill",
"kevlar_no_autoscroll_on_playlist_hover",
"kevlar_passive_event_listeners",
"kevlar_player_playlist_use_local_index",
"kevlar_playlist_drag_handles",
"kevlar_playlist_use_x_close_button",
"kevlar_rendererstamper_event_listener",
"kevlar_should_maintain_stable_list",
"kevlar_show_playlist_dl_btn",
"music_on_main_open_playlist_recommended_videos_in_miniplayer",
"player_allow_autonav_after_playlist",
"player_enable_playback_playlist_change",
"web_amsterdam_post_mvp_playlists",
// not sure
// "check_user_lact_at_prompt_shown_time_on_web",
"clear_user_partitioned_ls",
"desktop_notification_high_priority_ignore_push",
"desktop_notification_set_title_bar",
"enable_first_user_action_csi_logging",
"enable_get_account_switcher_endpoint_on_webfe",
"enable_handles_account_menu_switcher",
"enable_names_handles_account_switcher", // TBC
"enable_pass_sdc_get_accounts_list",
"enable_server_stitched_dai",
"enable_yt_ata_iframe_authuser",
// "fill_single_video_with_notify_to_lasr",
"html5_server_stitched_dai_group",
// "is_part_of_any_user_engagement_experiment",
"kevlar_miniplayer_queue_user_activation",
// "rich_grid_resize_observer",
// "rich_grid_resize_observer_only",
'desktop_add_to_playlist_renderer_dialog_popup',
...(!DISABLE_CINEMATICS ? [
'kevlar_measure_ambient_mode_idle',
'kevlar_watch_cinematics_invisible',
'web_cinematic_theater_mode',
'web_cinematic_fullscreen',
'enable_cinematic_blur_desktop_loading',
'kevlar_watch_cinematics',
'web_cinematic_masthead',
'web_watch_cinematics_preferred_reduced_motion_default_disabled'
] : []),
'kevlar_rendererstamper_event_listener', // https://github.com/cyfung1031/userscript-supports/issues/11
'live_chat_web_enable_command_handler',
'live_chat_channel_activity',
'live_chat_web_input_update',
'live_chat_web_enable_command_handler',
...(ALLOW_ALL_LIVE_CHATS_FLAGS ? [
'live_chat_banner_expansion_fix',
'live_chat_enable_mod_view',
'live_chat_enable_qna_banner_overflow_menu_actions',
'live_chat_enable_qna_channel',
'live_chat_enable_send_button_in_slow_mode',
'live_chat_filter_emoji_suggestions',
'live_chat_increased_min_height',
'live_chat_over_playlist',
'live_chat_web_use_emoji_manager_singleton',
'live_chat_whole_message_clickable',
'live_chat_emoji_picker_toggle_state',
'live_chat_enable_command_handler_resolver_map',
'live_chat_enable_controller_extraction',
'live_chat_enable_rta_manager',
'live_chat_require_space_for_autocomplete_emoji',
'live_chat_unclickable_message',
] : []),
'kevlar_rendererstamper_event_listener', // https://github.com/cyfung1031/userscript-supports/issues/11
// kevlar_enable_up_arrow - no use
// kevlar_help_use_locale - might use
// kevlar_refresh_gesture - might use
// kevlar_smart_downloads - might use
// kevlar_thumbnail_fluid
'kevlar_ytb_live_badges',
...(!use_maintain_stable_list ? [
'kevlar_tuner_should_test_maintain_stable_list',
'kevlar_should_maintain_stable_list',
'kevlar_tuner_should_maintain_stable_list', // fallback
] : []),
...(!use_maintain_reuse_components ? [
'kevlar_tuner_should_test_reuse_components',
'kevlar_tuner_should_reuse_components',
'kevlar_should_reuse_components' // fallback
] : []),
'kevlar_system_icons',