Title: JavaScript broken after WordPress 3.9 update Last modified: August 21, 2016 --- # JavaScript broken after WordPress 3.9 update * Resolved [SamAshford](https://wordpress.org/support/users/samashford/) * (@samashford) * [12 years, 1 month ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/) * Hi there, * My web address is [http://www.timothyperkins.co.uk](http://www.timothyperkins.co.uk) I am using the theme Blanco. Plugins… Woo Commerce and Layer Slider WP WordPress version 3.9 * I updated WordPress to version 3.9 this morning and it now looks like JavaScript isn’t working… On the home page there was a scrolling image using the Layer Slider WP. The slider is still there in Layer Slider but on the home page there is a large white space where the slider was previously. * And on the contact page there was a live Google map. This is now blank and shows the message “Enable your JavaScript! * I have tried visiting my website from multiple computers that this website worked on before the update and they are doing the same. * Please help Viewing 12 replies - 1 through 12 (of 12 total) * [Josh](https://wordpress.org/support/users/josh401/) * (@josh401) * [12 years, 1 month ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/#post-4817773) * It is your theme. It is throwing a javascript error: * ``` Uncaught exception: TypeError: 'jQuery(window).smartresize' is not a function Error thrown at line 285, column 1 in () in http://www.timothyperkins.co.uk/wp-content/themes/blanco/js/script.js?ver=3.9: jQuery(window).smartresize(function() { called via Function.prototype.apply() from line 1272, column 5 in (l) in http://www.timothyperkins.co.uk/wp-includes/js/jquery/jquery.js?ver=1.11.0: if (h[f].apply(l[0], l[1]) === !1 && a.stopOnFalse) called from line 1317, column 5 in (a, c) in http://www.timothyperkins.co.uk/wp-includes/js/jquery/jquery.js?ver=1.11.0: return !h || d && !i || (c = c || [], c = [a, c.slice ? c.slice() : c], b ? i.push(c) : j(c)), this called from line 1398, column 4 in (a) in http://www.timothyperkins.co.uk/wp-includes/js/jquery/jquery.js?ver=1.11.0: n.isReady = !0, a !== !0 && --n.readyWait > 0 || (I.resolveWith(z, [n]), n.fn.trigger && n(z).trigger("ready").off("ready")) called from line 1406, column 2 in K() in http://www.timothyperkins.co.uk/wp-includes/js/jquery/jquery.js?ver=1.11.0: (z.addEventListener || "load" === event.type || "complete" === z.readyState) && (J(), n.ready()) ``` * You’ll need to contact the theme author.. looks to be [ThemeForest](http://themeforest.net/item/blanco-responsive-wordpress-wooecommerce-theme/2755246/support)?? * [Skoad](https://wordpress.org/support/users/skoad/) * (@skoad) * [12 years, 1 month ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/#post-4817893) * I found this thread by searching for “wordpress broke layerslider” * Also using Blanco theme. Guess need to revert wordpress until Blanco updates. * [Manly](https://wordpress.org/support/users/jmanly3/) * (@jmanly3) * [12 years, 1 month ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/#post-4818036) * I’ve encountered a similar issue on [http://airportrevenuenews.com](http://airportrevenuenews.com), since the 3.9 update. * The sliders in the NEWS FLASH and PUBLICATION sections slide left for a second, but then just jump back to their initial position, instead of rotating through. * I’m not the best with jQuery or WordPress, but I looked around as good as I could and I can’t see what the problem is. * [Andrew Nevins](https://wordpress.org/support/users/anevins/) * (@anevins) * WCLDN 2018 Contributor | Volunteer support * [12 years, 1 month ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/#post-4818038) * Hi jmanly3, do you know if those sliders are part of your theme or a plugin? * [Skoad](https://wordpress.org/support/users/skoad/) * (@skoad) * [12 years, 1 month ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/#post-4818040) * Sliders are a plugin. That wasnt the only issue I found with my site though. It killed most javascript. I use Visual Composer for my faq section(lists faq titles, you click it and it expands) which no longer works. Also my woocommerce cart does not update when changing shipping options. Guess gotta wait for blanco to update. * [Manly](https://wordpress.org/support/users/jmanly3/) * (@jmanly3) * [12 years, 1 month ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/#post-4818042) * Andrew, * I started with this company after the site was built (they outsourced it to India), so I’m still trying to figure out how/why they did things and the code is pretty messy. I’ve been digging around in the php files and this is what I’ve found: * For the “Publication” section, it appears they have used the Carousel Horizontal Content Slider plugin, but instead of seeing that under “Plugins” in WP, I see it under settings and there isn’t much to do in there. * For the “News Flash” section, they went with a jQuery bxSlider. * Neither of these are really “plugins” (I don’t think) and everything was working just fine yesterday, before we updated. * [Andrew Nevins](https://wordpress.org/support/users/anevins/) * (@anevins) * WCLDN 2018 Contributor | Volunteer support * [12 years, 1 month ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/#post-4818043) * Hmm doesn’t look like it’s going to be a simple fix, can you create a new thread to discuss it [http://wordpress.org/support/forum/how-to-and-troubleshooting#postform](http://wordpress.org/support/forum/how-to-and-troubleshooting#postform) * [Manly](https://wordpress.org/support/users/jmanly3/) * (@jmanly3) * [12 years, 1 month ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/#post-4818044) * Thanks * [brucesteelers](https://wordpress.org/support/users/brucesteelers/) * (@brucesteelers) * [12 years, 1 month ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/#post-4818079) * Have the same problem_ please help_ * Moderator [Ipstenu (Mika Epstein)](https://wordpress.org/support/users/ipstenu/) * (@ipstenu) * 🏳️‍🌈 Advisor and Activist * [12 years, 1 month ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/#post-4818084) * For the BLANCO theme, it’s been updated: [http://themeforest.net/item/blanco-responsive-wordpress-wooecommerce-theme/2755246](http://themeforest.net/item/blanco-responsive-wordpress-wooecommerce-theme/2755246) * If you’re not using that theme, please make your own topic. * [brucesteelers](https://wordpress.org/support/users/brucesteelers/) * (@brucesteelers) * [12 years, 1 month ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/#post-4818091) * Go to your host control panel and delete both Blanco and WP Slider and reinstall this will solve the problem. * [twoelevenjay](https://wordpress.org/support/users/twoelevenjay/) * (@twoelevenjay) * [11 years, 8 months ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/#post-4818267) * For anyone who does not want to update Blanco you can got to: * `wp-content/themes/blanco/js/script.js` * and add: * ``` (function($,sr){ // debouncing function from John Hann // http://unscriptable.com/index.php/2009/03/20/debouncing-javascript-methods/ var debounce = function (func, threshold, execAsap) { var timeout; return function debounced () { var obj = this, args = arguments; function delayed () { if (!execAsap) func.apply(obj, args); timeout = null; }; if (timeout) clearTimeout(timeout); else if (execAsap) func.apply(obj, args); timeout = setTimeout(delayed, threshold || 100); }; } // smartresize jQuery.fn[sr] = function(fn){ return fn ? this.bind('resize', debounce(fn)) : this.trigger(sr); }; })(jQuery,'smartresize'); ``` * to line 353 and that should fix the problem. Viewing 12 replies - 1 through 12 (of 12 total) The topic ‘JavaScript broken after WordPress 3.9 update’ is closed to new replies. * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) * 12 replies * 8 participants * Last reply from: [twoelevenjay](https://wordpress.org/support/users/twoelevenjay/) * Last activity: [11 years, 8 months ago](https://wordpress.org/support/topic/javascript-broken-after-wordpress-39-update/#post-4818267) * Status: resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics