fix: Add accept headers to silence 401 Unauthorized error (#1865)

Author: jirispilka

apify-docs-theme/static/js/custom.js

@@ -145,6 +145,9 @@ function clearMcpRedirectCache() {
         fetch('https://mcp.apify.com/', {
             method: 'get',
             cache: 'reload',
+            headers: {
+                Accept: 'text/html',
+            },
         }).then(() => {
             // Cache cleared successfully
         }).catch(() => {