diff --git a/src/client.ts b/src/client.ts
index 6dd9242..1661791 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -110,7 +110,7 @@ export class HttpClient {
         options: SendRequestOptions,
     ): AxiosRequestConfig {
         const headers = Object.assign({}, this.headers, options.headers);
-        console.log(`isDeepL: ${isDeepL}`);
+        logDebug(`isDeepL: ${isDeepL}`);
 
         const axiosRequestConfig: AxiosRequestConfig = {
             url: isDeepL ? url : undefined,
@@ -152,7 +152,7 @@ export class HttpClient {
      * @param url Path to endpoint, excluding base server URL if DeepL API request, including base server URL if a webpage.
      * @param options Additional options controlling request.
      * @param responseAsStream Set to true if the return type is IncomingMessage.
-     * @return Fulfills with status code and response (as text or stream).
+     * @return Fulfills with status code, content type, and response (as text or stream).
      */
     async sendRequestWithBackoff<TContent extends string | IncomingMessage>(
         method: HttpMethod,
@@ -182,6 +182,11 @@ export class HttpClient {
                 isDeepLUrl,
                 options,
             );
+
+            if (!isDeepLUrl && axiosRequestConfig.headers) {
+                delete axiosRequestConfig.headers.Authorization;
+            }
+
             try {
                 response = await HttpClient.sendAxiosRequest<TContent>(axiosRequestConfig);
                 error = undefined;
@@ -251,7 +256,11 @@ export class HttpClient {
                 }
             }
 
-            return { statusCode: response.status, content: response.data, contentType };
+            return {
+                statusCode: response.status,
+                content: response.data,
+                contentType: contentType,
+            };
         } catch (axios_error_raw) {
             const axiosError = axios_error_raw as AxiosError;
             const message: string = axiosError.message || '';
diff --git a/src/errors.ts b/src/errors.ts
index 17f5baf..78325f0 100644
--- a/src/errors.ts
+++ b/src/errors.ts
@@ -41,3 +41,5 @@ export class DocumentTranslationError extends DeepLError {
 export class GlossaryNotFoundError extends DeepLError {}
 
 export class DocumentNotReadyError extends DeepLError {}
+
+export class WebsiteDownloadError extends DeepLError {}
diff --git a/src/index.ts b/src/index.ts
index bd3a28c..6f61dfe 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -11,6 +11,7 @@ import {
     GlossaryNotFoundError,
     QuotaExceededError,
     TooManyRequestsError,
+    WebsiteDownloadError,
 } from './errors';
 import { GlossaryEntries } from './glossaryEntries';
 import {
@@ -1062,7 +1063,7 @@ export class Translator {
         await checkStatusCode(statusCode, content);
 
         if (!contentType?.includes('text/html')) {
-            throw new Error('URL to translate must return HTML');
+            throw new WebsiteDownloadError('URL to translate must return HTML');
         }
 
         return content;