Fix typescript strict issues for CosmosClient and other files

src/Common/CosmosClient.ts

@@ -39,8 +39,16 @@ export const tokenProvider = async (requestInfo: RequestInfo) => {
 };
 
 export const requestPlugin: Cosmos.Plugin<any> = async (requestContext, next) => {
-  requestContext.endpoint = new URL(configContext.PROXY_PATH, window.location.href).href;
-  requestContext.headers["x-ms-proxy-target"] = endpoint();
+  requestContext.endpoint = new URL(
+    configContext.PROXY_PATH ? configContext.PROXY_PATH : "",
+    window.location.href
+  ).href;
+  if (requestContext.headers !== undefined) {
+    const returnValue = endpoint();
+    if (returnValue !== undefined) {
+      requestContext.headers["x-ms-proxy-target"] = returnValue;
+    }
+  }
   return next(requestContext);
 };
 
@@ -60,7 +68,7 @@ export async function getTokenFromAuthService(verb: string, resourceType: string
       method: "POST",
       headers: {
         "content-type": "application/json",
-        "x-ms-encrypted-auth-token": userContext.accessToken,
+        "x-ms-encrypted-auth-token": userContext.accessToken ? userContext.accessToken : "",
       },
       body: JSON.stringify({
         verb,

src/Common/ErrorHandlingUtils.ts

@@ -28,10 +28,10 @@ export const getErrorMessage = (error: string | Error = ""): string => {
 };
 
 export const getErrorStack = (error: string | Error): string => {
-  return typeof error === "string" ? undefined : error.stack;
+  return typeof error === "string" ? "" : error.stack === undefined ? "" : error.stack;
 };
 
-const sendNotificationForError = (errorMessage: string, errorCode: number | string): void => {
+const sendNotificationForError = (errorMessage: string, errorCode: number | string | undefined): void => {
   if (errorCode === HttpStatusCodes.Forbidden) {
     if (errorMessage?.toLowerCase().indexOf("sharedoffer is disabled for your account") > 0) {
       return;

tsconfig.strict.json

@@ -139,7 +139,8 @@
     "./src/userContext.test.ts",
     "src/Common/EntityValue.tsx",
     "./src/Platform/Hosted/Components/SwitchAccount.tsx",
-    "./src/Platform/Hosted/Components/SwitchSubscription.tsx"
+    "./src/Platform/Hosted/Components/SwitchSubscription.tsx",
+    "./src/Common/CosmosClient.ts"
   ],
   "include": [
     "src/CellOutputViewer/transforms/**/*",