Is Substital: Add subtitles to videos and movies safe?

const j = "https://cdn.givefreely.com/adunit/behavioral/";class W {  constructor(e) {    this.partnerApiKey = e, this.partnerConfig = null, this.globalConfig = null, this.mergedConfig = null, this.globalConfigRefreshInterval = null, this.partnerConfigRefreshInterval = null, this.eventEmitter = new N, this.isInitialized = !1, this.partnerCircuitBreaker = new z({      failureThreshold: 3,      recoveryTimeout: 6e4,      monitoringWindow: 3e5,      storageKey: `gf_partner_circuit_breaker_${e}`    }), this.globalCircuitBreaker = new z({      failureThreshold: 3,      recoveryTimeout: 6e4,      monitoringWindow: 3e5,      storageKey: "gf_global_circuit_breaker"    })  }  async initialize() {    this.isInitialized || (await Promise.all([this.partnerCircuitBreaker.initialize(), this.globalCircuitBreaker.initialize()]), this.isInitialized = !0)  }  ensureInitialized() {    if (!this.isInitialized) throw new Error("GiveFreelyConfigService must be initialized before use. Call initialize() or use create() method.")  }  getRetryOptions() {    return {      delayFn: e => 1e3 * e,      maxAttempts: 3    }  }  async fetchPartnerConfig() {    const e = await u((async () => {      const e = await fetch(`${j}${this.partnerApiKey}.json`, {        cache: "no-store"      });      if (!e.ok) throw new Error(`Failed to fetch partner config: ${e.statusText}`);      return e.json()    }), this.getRetryOptions());    if (!e) throw new Error("Failed to fetch or get from cache partner config");    return this.partnerConfigRefreshInterval = e.configRefreshInterval || this.partnerConfigRefreshInterval, e  }  async fetchGlobalConfig() {    const e = await u((async () => {      const e = await fetch(`${j}global.json`, {        cache: "no-store"      });      if (!e.ok) throw new Error(`Failed to fetch global config => Status code: ${e.status} .${e.statusText}`);      return e.json()    }), this.getRetryOptions());    if (!e) throw new Error("Failed to fetch or get from cache global config", e);    return this.globalConfigRefreshInterval = e.configRefreshInterval || this.globalConfigRefreshInterval, e  }  async getCachedConfig() {    return this.mergedConfig  }  async getConfig(e = !1) {    this.ensureInitialized();    let t = !1;    e && (t = await U());    const [r, i] = await Promise.all([R.get(w, this.fetchPartnerConfig.bind(this), this.partnerConfigRefreshInterval, t, (e => e?.configRefreshInterval ?? null)), R.get(y, this.fetchGlobalConfig.bind(this), this.globalConfigRefreshInterval, t, (e => e?.configRefreshInterval ?? null))]);    if (!i.content) throw new Error("Global config is required");    if (!r.content) throw new Error("Partner config is required");    this.partnerConfig = r.content, this.globalConfig = i.content;    const s = this.mergeConfigs(JSON.parse(JSON.stringify(this.globalConfig)), JSON.parse(JSON.stringify(this.partnerConfig)));    if (!s) throw new Error("Was not able to merge configs");    return ((e, t, r) => {      const i = [...t.merchantExclusions ?? [], ...r.merchantExclusions ?? []];      e.merchantExclusions = i    })(s, this.globalConfig, this.partnerConfig), this.emitConfigChanges(s), s  }}

if (u(l || {}), e.logger.debug("Charities for current country", {    currentCountry: a,    charities: l  }), !1 === e.popupConfig.checkoutPopupMasterSwitch) return void e.logger.debug("Checkout popup master switch is disabled");