lib: improve Accept Language header options

itteco · Feb 13, 2025 · 33dd1a5 · 33dd1a5
1 parent 2679ae4
commit 33dd1a5
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Showing 2 changed files with 8 additions and 5 deletions.
diff --git a/config.js b/config.js
@@ -54,8 +54,6 @@
 
         FB_USER_AGENT: 'facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)',
 
-        ACCEPT_LANGUAGE_SUFFIX: ';q=0.9,en;q=0.7,*;q=0.5',
-
         SKIP_IFRAMELY_RENDERS: false,
         DEFAULT_ASPECT_RATIO: 16 / 9,
         DOC_ASPECT_RATIO: 8.5 / 11,

diff --git a/lib/utils.js b/lib/utils.js
@@ -142,10 +142,15 @@ export function prepareRequestOptions(request_options, options) {
         }        
     } 
 
-    var lang = options && options.getProviderOptions && options.getProviderOptions('locale', 'en-US') || 'en-US';
-    if (lang && !disable_language) {
+    var lang = options?.getProviderOptions && options.getProviderOptions('locale') || '';
+    if (!disable_language) {
         request_options.headers = request_options.headers || {};
-        request_options.headers['Accept-Language'] = lang.replace('_', '-') + CONFIG.ACCEPT_LANGUAGE_SUFFIX;
+        request_options.headers['Accept-Language'] = 
+            lang /* !== '' */
+                ? lang.replace('_', '-') 
+                    + (/\-/.test(lang) ? `,${lang.replace(/\-.*$/, '')};q=0.9` : '')
+                    + ',en;q=0.7,*;q=0.5'
+                : 'en,*';
     }
 
     prepareEncodedUri(request_options, 'uri');