--- a/third_party/devtools-frontend/src/front_end/core/host/DispatchHttpRequestClient.ts
+++ b/third_party/devtools-frontend/src/front_end/core/host/DispatchHttpRequestClient.ts
@@ -14,7 +14,7 @@ export enum ErrorType {
 }
 
 export class DispatchHttpRequestError extends Error {
-  constructor(readonly type: ErrorType, readonly response?: DispatchHttpRequestResult, options?: ErrorOptions) {
+  constructor(readonly type: ErrorType, readonly response?: DispatchHttpRequestResult | undefined, options?: ErrorOptions) {
     super(undefined, options);
   }
 }
--- a/third_party/devtools-frontend/src/front_end/ui/legacy/ARIAUtils.ts
+++ b/third_party/devtools-frontend/src/front_end/ui/legacy/ARIAUtils.ts
@@ -420,7 +420,7 @@ export class LiveAnnouncer {
     element.textContent = Platform.StringUtilities.trimEndWithMaxLength(announcedMessage, 10000);
   }
 
-  static getOrCreateAnnouncerElement(container: HTMLElement = document.body, role: AnnouncerRole, opts?: {
+  static getOrCreateAnnouncerElement(container: undefined | HTMLElement = document.body, role: AnnouncerRole, opts?: {
     force: boolean,
   }): HTMLElement {
     const existingAnnouncerElement = LiveAnnouncer.#announcerElementsByRole[role].get(container);
--- a/third_party/devtools-frontend/src/front_end/ui/legacy/Widget.ts
+++ b/third_party/devtools-frontend/src/front_end/ui/legacy/Widget.ts
@@ -84,7 +84,7 @@ export type WidgetFactory<WidgetT extend
 export type InferWidgetTFromFactory<F> = F extends WidgetFactory<infer WidgetT>? WidgetT : never;
 
 export class WidgetConfig<WidgetT extends AnyWidget> {
-  constructor(readonly widgetClass: WidgetFactory<WidgetT>, readonly widgetParams?: Partial<WidgetT>) {
+  constructor(readonly widgetClass: WidgetFactory<WidgetT>, readonly widgetParams?: Partial<WidgetT> | undefined) {
   }
 }
 
--- a/third_party/devtools-frontend/src/scripts/build/typescript/typescript_vars.gni
+++ b/third_party/devtools-frontend/src/scripts/build/typescript/typescript_vars.gni
@@ -6,7 +6,7 @@ import("//build/toolchain/rbe.gni")
 import("../ninja/vars.gni")
 
 if (host_os == "linux") {
-  tsc_binary = "//third_party/typescript/linux-amd64/src/lib/tsc"
+  tsc_binary = "/usr/bin/tsc"
 } else if (host_os == "win") {
   tsc_binary = "//third_party/typescript/windows-amd64/src/lib/tsc.exe"
 } else if (host_os == "mac") {
--- a/third_party/devtools-frontend/src/third_party/typescript/typescript.py
+++ b/third_party/devtools-frontend/src/third_party/typescript/typescript.py
@@ -10,6 +10,7 @@ import os
 
 
 def GetBinaryPath():
+    return "/usr/bin/tsc"
     if platform.machine() == 'arm64':
         darwin_path = 'mac-arm64'
     else:
--- a/ui/webui/webui_features.gni
+++ b/ui/webui/webui_features.gni
@@ -33,7 +33,7 @@ declare_args() {
 
   # Enable the native TypeScript compiler (tsgo) instead of the JS-based one.
   # TODO(crbug.com/423789047): Remove this flag once fully committed to v7.
-  use_typescript_go = true
+  use_typescript_go = false
 }
 
 if (enable_cast_receiver || is_cast_android || is_castos) {