Title: Uncaught SyntaxError: Unexpected token ‘<' Last modified: November 8, 2023 --- # Uncaught SyntaxError: Unexpected token ‘<' * Resolved [hanneslsm](https://wordpress.org/support/users/hanneslsm/) * (@hanneslsm) * [2 years, 7 months ago](https://wordpress.org/support/topic/uncaught-syntaxerror-unexpected-token-36/) * Hello there, I’ve created a website with a custom block theme and even got the website to get all 100 points on the Lighthouse test, also because of the plugin. Thank you very much!However, visitors complain about the website being broken. I only can replicate this issue when visiting the site with a VPN (interestingly not always, maybe a localisation issue?).The console logs the error`Uncaught SyntaxError: Unexpected token '<'` * Here is a screen recording that shows the issue better than I could explain: * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Funcaught-syntaxerror-unexpected-token-36%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 11 replies - 1 through 11 (of 11 total) * Plugin Author [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/) * (@donncha) * [2 years, 7 months ago](https://wordpress.org/support/topic/uncaught-syntaxerror-unexpected-token-36/#post-17183279) * That is odd. I saw the same thing but when I added a random number to the URL, like ?123 it generated a new cache file and that version was ok. * I think there’s a bug on your site causing this error, that only shows to some users. This plugin caches it as a static html page and then that html is served to everyone. * I saved the html of your front page twice, once when it was broken, once when it was fixed and saw a few odd differences. Even the body tag was different: * > page page-id-23 wp-custom-logo wp-embed-responsive cmplz-preferences cmplz- > functional cmplz-eu cmplz-optin” data-aos-easing=”ease” data-aos-duration=” > 400″ data-aos-delay=”0″> > Body tag on fixed homepage * > page page-id-23 wp-custom-logo wp-embed-responsive”> > Body tag on broken homepage * The later ` Does the theme have any user agent sniffing so it displays things differently > to some browsers? * No, I’m not aware of any. If so, then only because the Create Block theme plugin or Gutenberg has added any. The issue occurs also in iOS Safari and Firefox. * Plugin Author [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/) * (@donncha) * [2 years, 7 months ago](https://wordpress.org/support/topic/uncaught-syntaxerror-unexpected-token-36/#post-17184041) * I managed to download a copy of your front page when it was broken. There’s something weird going on there. The broken page has translated elements like “Comments Feed” and is using style.min.css where the fixed page uses the German “Kommentar- Feed” and uses style.css * I noticed something that might be the reason for this. I loaded your page but some of the images were blank. I opened the image in a new browser tab and instead of the image I saw your homepage again. When I refreshed, the image appeared. * I did the same with viewing the source of style.min.css when the page looked broken and your front page source showed. When I refreshed, the minified css file showed. * Do you have a reverse proxy in front of your site? Or some sort of local proxy or mod_rewrite rules or something that’s supposed to cache static content? * Thread Starter [hanneslsm](https://wordpress.org/support/users/hanneslsm/) * (@hanneslsm) * [2 years, 7 months ago](https://wordpress.org/support/topic/uncaught-syntaxerror-unexpected-token-36/#post-17184350) * > Do you have a reverse proxy in front of your site? Or some sort of local proxy > or mod_rewrite rules or something that’s supposed to cache static content? * I am not aware of this, but I’ll check in with my hoster. * Thread Starter [hanneslsm](https://wordpress.org/support/users/hanneslsm/) * (@hanneslsm) * [2 years, 7 months ago](https://wordpress.org/support/topic/uncaught-syntaxerror-unexpected-token-36/#post-17184638) * I don’t know much about server configuration and caching, but I found that nginx cache was activated. Deactivating it did in fact resolve the issue, however I do not see any difference in loading times between nginx caching or using the plugin. The server configuration settings: [https://docs.plesk.com/en-US/obsidian/customer-guide/websites-and-domains/hosting-settings/web-server-settings/apache-and-nginx-settings.72320/#enabling-nginx-caching](https://docs.plesk.com/en-US/obsidian/customer-guide/websites-and-domains/hosting-settings/web-server-settings/apache-and-nginx-settings.72320/#enabling-nginx-caching) * What would be the advantage of using the WP Super cache plugin over the nginx cache? Is there any difference? Using both simultaneously doesn’t seem to work. * Thread Starter [hanneslsm](https://wordpress.org/support/users/hanneslsm/) * (@hanneslsm) * [2 years, 7 months ago](https://wordpress.org/support/topic/uncaught-syntaxerror-unexpected-token-36/#post-17184704) * I guess the nginx caching was the issue. I now deactivated it and keep the Plugin. Thanks for pointing me to the solution! * Plugin Author [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/) * (@donncha) * [2 years, 7 months ago](https://wordpress.org/support/topic/uncaught-syntaxerror-unexpected-token-36/#post-17185043) * Glad to hear it’s fixed! Viewing 11 replies - 1 through 11 (of 11 total) The topic ‘Uncaught SyntaxError: Unexpected token ‘<'’ is closed to new replies. * ![](https://ps.w.org/wp-super-cache/assets/icon-256x256.png?rev=3506220) * [WP Super Cache](https://wordpress.org/plugins/wp-super-cache/) * [Frequently Asked Questions](https://wordpress.org/plugins/wp-super-cache/#faq) * [Support Threads](https://wordpress.org/support/plugin/wp-super-cache/) * [Active Topics](https://wordpress.org/support/plugin/wp-super-cache/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wp-super-cache/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wp-super-cache/reviews/) * 11 replies * 2 participants * Last reply from: [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/) * Last activity: [2 years, 7 months ago](https://wordpress.org/support/topic/uncaught-syntaxerror-unexpected-token-36/#post-17185043) * Status: resolved