Viewing 15 replies - 1 through 15 (of 15 total), [Violation] setTimeout handler took 85ms | auto optimize JS CACHE, https://locksmithunit.es/wp-content/cache/autoptimize/js/autoptimize_0faae6e14c06ce5fda142895e39a52f6.js, https://www.keycdn.com/support/wordpress-cache-enabler-plugin#advanced-configuration, https://wordpress.org/support/topic/violation-settimeout-handler-took-99ms/, https://wordpress.org/support/topic/you-destroy-the-plugin-or-what-plugin-performance-is-terrible-3-last-updates/, https://wordpress.org/support/topic/no-support-i-post-3-posts-no-body-answer/, https://wordpress.org/support/topic/x-cache-handler-php-and-not-wp/, This reply was modified 2 years, 4 months ago by, This reply was modified 2 years, 3 months ago by. Cache Enabler Team tries to bypass new stuff with the plugin. By clicking Sign up for GitHub, you agree to our terms of service and We are sending an obsolete scroll height measurement in our event even before the data was set on screen. maybe nginx? I COMEBACK AFTER THE LAST UPDATE OF CACHE ENABLER AND THIS START BE WORST: might do a deep checking. Elements hidden with display: none; will not cause a repaint or reflow when they are changed. Slider with tooltip is a standard feature that normally works well, so chances are you have some performance issue in your code. Also . root, and all the way down into the children of the modified node. efficiency, different types of style changes) on reflow time. Invariant Violation: mutation option is required. react native, calling anonymous function while declaring it, Convert array to string while preserving brackets, how sum all array element with while loop, 9.6.3. for Loops Rewritten as while Loops, Error occurred while trying to proxy to: localhost:3000/, show loading spinner while page loads angularjs, how to change function name while exporting in node, Open URL while passing POST data with jQuery, output an array without for or while loop, Unexpected end of JSON input while parsing near, 9.6.4. If you want to get involved, click one of these buttons! No. I found a solution in Apache Cordova source code. This never happened before. In my case, the problem is a table of two columns with potentially hundreds, even thousands of rows. All mainstream browsers provide developer tools that highlight how reflows affect performance. to your account. NOW I DONT KNOW BUT I KNOW IS SOMETHING HERE IN CACHE ENABLER PLUGIN: effects of various document properties (DOM depth, CSS rule # server-side caching. I am using Ionic 4 (Angular 8), my code was working fine, suddenly this kind of violation started coming - there is no data showing in my list now? In general, this message prompts you a target for performance tuning. In this particular case, vorning tells you that something happened in js that entailed a significant restructuring of the page structure without an obvious reason for the debugger and tells you how long it took. set $CACHE_BYPASS_FOR_DYNAMIC 1; With this knowledge, I was able to improve performance of an app in my workplace by 75%. What do you need to do to trigger that error on the page? proxy_cache_use_stale error timeout invalid_header updating http_429 http_500 http_502 http_503 http_504; # Additional options: http_403 http_404 # to Apache except only when its required to refresh its cache. Thanks' in advance! proxy_cache_bypass $CACHE_BYPASS_FOR_DYNAMIC; proxy_cache engintron_dynamic; Thank you. }, # Admin sections & generic entry points for CMSs (incl. when I did some calculations forcing rendering of the page Welcome aboard. In my case, the problem is a table of two columns with potentially hundreds, even thousands of rows. I found that it has not much to do with gsap. The calculations were done, and the Javascript continued until it finished. Because reflow is a -This solution causes a forced reflow. What would happen if an airplane climbed beyond its preset cruise altitude that the pilot set in the pressurization system? Bizarrely, reading an elements offsetWidth and offsetHeight property can trigger an initial reflow so the figures can be calculated. This isn't very important, but I repeat, the problem arises when you call a function several times, and not when the function takes more than 50 ms. Is the problem not there? this is why i'm so frustrating about it. I'm not afraid. Sign in to comment While I was trying to fix this issue I found out that this warning comes from "window.innerWidth" property.. I've tried using "document.documentElement.clientWidth" instead of "window.innerWidth" to get window width and it seems fixed for now. Chrome complains with the title's message. [violation] forced reflow while executing javascript took Copy xxxxxxxxxx 35 You can read more about the asynchronous nature of JavaScript here. Fortunately, there are several general tips you can use to enhance performance. Information on how to create a test case (if you aren't able to link to the page you are working on) is available here. (, The property requested is one of the following: (, Quite a lot; haven't made an exhaustive list , but, Lots & lots of stuff, including copying an image to clipboard (. Have a question about this project? To review, open the file in an editor that reveals hidden Unicode characters. is better to bypass cache enabler? I wrote about the Critical Rendering Path (CRP) in a former article. For example, opacity, background-color, visibility, and outline. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); document.getElementById( "ak_js_2" ).setAttribute( "value", ( new Date() ).getTime() ); Would love your thoughts, please comment. Any simple ways to make it faster? It happens when a measurement of the DOM happens after a DOM mutation. !test_)[a-zA-Z0-9_]+|wp-postpass|comment_author_[a-zA-Z0-9_]+|woocommerce_cart_hash|woocommerce_items_in_cart|wp_woocommerce_session_[a-zA-Z0-9]+|sid_customer_|sid_admin_|PrestaShop-[a-zA-Z0-9]+|SESS[a-zA-Z0-9]+|SSESS[a-zA-Z0-9]+|NO_CACHE|external_no_cache|adminhtml|private_content_version)) { This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. By the way, this is not necessarily bad, it can be difficult to refuse it. Someone has created a list for some possible options. [Violation] Forced reflow while executing JavaScript took 45ms [ Violation ] Long running JavaScript task took 234 ms [ Violation ] Forced reflow while executing JavaScript took 45 ms I wonder what happens when you perform the Force updates and/or click one of the Update Settings buttons using other browsers (e.g. This is a non-urgent issue, but I do hope you get time to eventually look at it. Thanks for contributing an answer to Stack Overflow! Enable executing multiple statements while execution via sqlalchemy. However, a single reflow can be implemented using a DOM fragment and building the nodes in memory first, e.g. Vue does it's DOM refreshes. That means that we force a later stage (layout) into our javascript. How can I validate an email address in JavaScript? Why did the Soviets not shoot down US spy satellites during the Cold War? [Violation] Forced reflow while executing JavaScript took 138ms, Google Chrome, Version 57.0.2987.133 (64-bit). Not the answer you're looking for? if ($http_cookie ~* (joomla_[a-zA-Z0-9_]+|userID|wordpress_(? In a nutshell, the regular flow of the code in the browser is this: Forced Reflow is a disturbance in the force sorry in the flow. I think you are mistaken in your answers. . thrashing, try with them as well: Where do you see this warning? In this exercise you will see an example for Forced reflow while executing JavaScript. A quick test on Chrome, we don't get the warning message ([Violation] Forced reflow while executing JavaScript took xxms). Inside, it measures the DOM and sends the updated scrollHeight (line 14). You can follow the discussion for more information. Is the problem still there? Today I've noticed a warning in the console on my site that I use scrollReveal on: So I took timeline snapshot and saw this. In my case, the one that correlated with warnings in console was from a file which was loaded by the AdBlock extension, but this could be something else in your case. Some elements are more expensive to render than others. This is a warning, deliverance or non-elimination from which is on your conscience. Forced reflow often happens when you have a function called multiple times before the end of execution. Finally, the user can trigger reflows by activating a :hover effect, entering text in a field, resizing the window, changing the font dimensions, switching stylesheets or fonts. 2 Ways to Use Your Own Docker Image in Github Actions. Chrome 57 turned on 'hide violations' by default. Turn off 1-by-1 calls and reload the code to see if it still produces the error. I have no clue, Hello, this problem is a bit old but I have the same, I will create a post if necessary if ($http_user_agent ~* (iPhone|iPod|iPad|Android|Mobile|Tablet|Googlebot\-Mobile|AdsBot\-Google)) { privacy statement. Chrome message: '[Violation] Forced reflow while executing JavaScript took ms'. Appending elements, changing height/width or position of elements etc. All of these files run on my other websites with no errors generated but I was getting this "Long Running Task" error on a new web app that barely had any functionality. i think your plugin is the number 1 plugin in optimization must be in any site. elements that dont have multiple deeply nested children). set $MOBILE m_; https://locksmithunit.es/wp-content/cache/autoptimize/js/autoptimize_0faae6e14c06ce5fda142895e39a52f6.js. [Violation] Forced reflow while executing JavaScript took 30ms Active resource loading counts reached a per-frame limit while the tab was in background. When was the problem introduced? Are you using any version control system (eg, Git)? specifically; you have JS using setTimeout (which is used to have a JavaSript task wait) and that setTimeout is running multiple times and each time waits (approx.) When you query the DOM for size or position, the result is usually taken from former calculations. and yes, the problem comes from an external. He's created enterprise specifications, websites and online applications for companies and organisations including the UK Parliament, the European Parliament, the Department of Energy & Climate Change, Microsoft, and more. Making statements based on opinion; back them up with references or personal experience. They're worth investigating and fixing to improve the quality of your application however. After you are changing the DOM, the browser flags its layout cache as invalid and schedules a recalculation. In which browser did the problem occur. you have been warned! Solution: Use a different browser, toggle closed as many WYSIWYG . if ($http_cache_control ~* private) { Supporters. as I wrote; you will have to search your JS (easiest is disabling Autoptimize by adding ?ao_noptimize=1 to the URL) for setTimeout and try to find out where that comes from. }, # Disable caching when the Cache-Control header is set to private My function, which is formate tooltip text is very simple and no other action with Dom produced. Chrome 57 turned on 'hide violations' by default. and i use even another costume plugin of yours Ok, look at the half you commented out! you can see i even try them again: This is possibly a browser-specific issue. i will update. please save me, if needed i will even hire you if dont have any choice. Views: 6,949. Your information will always be kept confidential. for now, i succeed to get rid of gclid. Query the server (just use the input field at the top). if ($cookie_member_id ~ ^[1-9][0-9]*$) { I've got it working with the code included here (it is a sample), but the page is very slow and I get a lot of violations messages in the console. You can hide this in the filter bar of the console with the Hide violations checkbox. However, if you're keen on resolving these (which you should), then you need to identify what is causing the warning first. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. I'm guessing there is some reflowing going on that took longer than expected. @Bungler I can only guess that it's saying that the code that is animating is in violation of providing at least a 60 frame per second and therefore giving a poor user experience. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. How do I find what file/function causes this warning? i used Chrome. Torsion-free virtually free-by-cyclic groups. This warning is a wonderful new feature, in my opinion, please only turn it off if you're desperate and your assessor will take marks away from you. Lets compare it to the CRP recording of a reflow-free code: You can see that the style and layout parts start after the javascript finished running. Launching the CI/CD and R Collectives and community editing features for How to stop mouseenter function when mouseout, jQuery flot the tooltip will not hide when I move the mouse quickly out of plot, How to show tooltip value at the position of the mouse in Bootstrap slider. i didn't find any similar error on Edge. For more detailed help you need to post your code, preferably as an executable example. Hey, i install cache enabler with autoptimize and nginx, from the minute i install cache enabler i get autoptimize cache script with a violation and google chrome browser after i am refreshing the page. I made the mistake of doing both in the same loop, which causes some layout thrashing. Ok, but as I write above, messages appear also when I'm only point mouse over slider handle. if ($cookie_ips4_member_id ~ ^[1-9][0-9]*$) { Both code snippet 3 and code snippet 1 send the measurement after the DOM changes have been made. this. I've clicked around a bit, but not managed to get those warnings to show up yet. ____________________________________________________________________________, #############################################################################################, # Allow separate cache entries for mobile devices (smartphones & tables) For more details on this particular performance scenario, see also this article. you all the time answer and help this the reason i try here. proxy_cache_background_update on; See [Violation] 'setTimeout' handler took 59ms, how to console.log while using a prompt in javascript, run a while loop for certain time javascript, an error occurred while applying security settings node js, example of while loop in javascript with array length. The development branch (v4.0 beta) attempts to separate them into batches, so that all computed styles (reads) are gathered before any DOM modifications (writes). Reduce unnecessary DOM depth. i believe is jquery when we block him with autoptimize. JavaScript, will trigger the browser to synchronously calculate the and all the cache together will show the real execution time of jquery (deprecated). i just realized this error today. RV coach and starter batteries connect negative to chassis; how does energy from either batteries' + terminal know which battery to flow back to? To execute this message change i have engintron for c-panel i sure you know what i talking about. Sign in What is the best way to debug performance problems? is autoptimize, is Cache enabler. See https://www.chromestatus.com/feature/5527160148197376 for more details. lastly; when I test there are no such messages, so likely this only happens for you as a logged on user. How do I replace all occurrences of a string in JavaScript? window.getComputedStyle() will typically force style recalc If you make complex rendering changes such as animations, do so out of the flow. # in the frontend (no forums, no e-commerce sites, no user logins!) I'm not sure what value that really adds though. Do German ministers decide themselves how to vote in EU decisions or do they have to follow a government line? if ($request_uri ~* (/administrator|/wp-admin|/wp-login.php)) { https://www.keycdn.com/support/wordpress-cache-enabler-plugin#advanced-configuration. It then allows you to sort the users by their ID or name. Projective representations of the Lorentz group can't occur in QFT! no way to fix with AO or CE or .. youll have to identify the original JS doing that and contact the developers of those , OK, SO YOU NOT RIGHT Every frame of the animation will cause a reflow. }, # Invision Power Board (IPB) v3+ When the slider tooltip is turned off, the slider speed is back to normal; and the console message only appears when I hover the mouse over the slider handle (without moving the handle). Asking for help, clarification, or responding to other answers. To learn more, see our tips on writing great answers. first of all; please dont use all caps, its not cool , next; this is part of verbose logging so technically speaking these are not JavaScript errors or warning (meaning everything works). https://wordpress.org/support/topic/you-destroy-the-plugin-or-what-plugin-performance-is-terrible-3-last-updates/, pointless this way i try with you. work only with cache enabler . you can mark it on solve. After inserting this trick code, all warning messages are gone. [Violation]'s for click, non-passive event listener, readystatechange, requestAnimationFrame and more. You just need to avoid a DOM measurement after a DOM mutation in the same CRP. What does "use strict" do in JavaScript, and what is the reasoning behind it? If you'd like to give the beta a try, its ~99% backwards compatible. [Closed] [Violation] Forced reflow while executing JavaScript took 34ms This support ticket is created 2 years, 3 months ago. Craig is a freelance UK web consultant who built his first page for IE2.0 in 1995. Repeat. Have a question about this project? Great answer, voltrevo! proxy_cache_methods GET HEAD; _____________________________. Please refer to, Violation Long running JavaScript task took xx ms, developer.mozilla.org/en-US/docs/Web/API/Console/time, Tony Gentilcore's 2011 Layout Triggering the htacsses. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. This is not an error just simple a message. Let's start with the fact that this is not a mistake. After changing it was clear, 0 verbose. If possible, please include a link to a codesandbox with the reproduced problem. This leads to more time being spent performing reflow. set $CACHE_BYPASS_FOR_DYNAMIC 1; It explains what browser reflow is: Reflow is the name of the web browser process for re-calculating the Everything was fine until I updated the "state" that forces the "results component" to rerender. In this article, we saw an example for a code that has forced reflow and how to solve forced reflow. For older browsers, use setTimeout(). Find centralized, trusted content and collaborate around the technologies you use most. i delete cache enabler better, autoptimize alone do all the job better and faster. No response. Just a few of the companies that rely on GreenSock products every day. this usually this script: . and is common performance bottleneck. It happens when a measurement of the DOM happens after a DOM mutation. GitHub MacOS Google Chrome, Version 57..2987.133 (64-bit) 3.3.4 Actual code: ;(function ($) { var options = {}; window.sr = ScrollReveal(options); sr.reveal('.sr-item', { viewFactor: 0.6, duration: 500 }); sr.reveal('.sr-item--seq', { viewFact. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. for the final, i try full with both You may be able to improve performance by setting a fixed height for the container or removing the control from the document flow. Look in the Chrome console under the Network tab and find the scripts which take the longest to load. }, AFTER THAT I HAVE DYNAMIC @backend BLOCK ON THE TOP OF THE STATIC CLOCKS: and yeah, i'm using git. I'd argue that learning about the underlying operation of getting the current time and building on that is more valuable. Should I include the MIT licence of a library which I use from a CDN? To display them click the arrow next to 'Info' and select 'Verbose'. We give it JS, HTML and CSS and they are translated into visual wonders. If needed, it should always be possible to do (3). [Violation] Forced reflow while executing JavaScript took 36ms. In the Google Chrome console if you select the Verbose level. How to Build a Vivid Birthday Quiz in 20 minutes? The browser knows how the DOM looks like, and if it knows it didnt change, it just gets the correct value from the layout cache (created in the former calculation). Partner is not responding when their writing is needed in European project application. How did Dominion legally obtain text messages from Fox News hosts? Can i validate an email address in JavaScript, and all the time answer help... That error on Edge +|userID|wordpress_ ( took 30ms Active resource loading counts reached a per-frame limit the. Reflow time first, e.g after you are changing the DOM happens a! Do in JavaScript, and all the way, this message change i have for..., we saw an example for a code that has Forced reflow cache Enabler Team tries bypass. That this is not an error just simple a message normally works well, so are. Layout Triggering the what is forced reflow while executing javascript the modified node more expensive to render than others an that. 1-By-1 calls and reload the code to see if it still produces the error built his page... Causes some layout thrashing this in the pressurization system you get time to eventually at. Products every day sections & generic entry points for CMSs ( incl the asynchronous nature of JavaScript here list some... How did Dominion legally obtain text messages from Fox News hosts after the LAST UPDATE of cache better! A per-frame limit while the tab was in background ; when i 'm only point mouse over slider handle if! Writing is needed in European project application reveals hidden Unicode characters initial reflow so figures. The fact that this is a non-urgent issue, but not managed to get involved, click of... Some possible options elements are more expensive to render than others to do with gsap responding. Only happens for you as a logged on user see if it still produces the error site design / 2023! Comes from an external avoid a DOM measurement after a DOM fragment and building the in! How do i find what file/function causes this warning, changing height/width or position elements... The children of the flow render than others from an external JS, HTML and CSS they. Offsetheight property can trigger an initial reflow so the figures can be difficult to refuse it i! Trusted content and collaborate around the technologies you use most sure what value that really adds.. Is some reflowing going on that took longer than expected value that really adds.. But not managed to get those warnings to show up yet: might do a deep checking GreenSock. Is more valuable maintainers and the JavaScript continued until it finished made the of... Github account to open an issue and contact its maintainers and the JavaScript continued until it finished you a for! Argue that learning about the Critical rendering Path ( CRP ) in a former article use ''! Number 1 plugin in optimization must be in any site different browser, toggle closed many... Limit while the tab was in background we block him with autoptimize list for some possible.... 2 years, 3 months ago the Soviets not shoot down US spy satellites the. Article, we saw an example for Forced reflow or position, the result is usually taken from former.! Version 57.0.2987.133 ( 64-bit ) up yet opacity, background-color, visibility and... Height/Width or position of elements etc animations, do so out of Lorentz. ; back them up with references or personal experience what value that adds! Just simple a message i did some calculations forcing rendering of the companies that rely on GreenSock products day. Have some performance issue in your code the way, this is not an error just a. Saw an example for Forced reflow while executing JavaScript, we saw an example Forced. Cc BY-SA it then allows you to sort the users by their or... Chrome message: ' [ Violation ] Forced reflow while executing JavaScript took 30ms Active resource loading counts a. Logins! with coworkers, Reach developers & technologists share private knowledge with coworkers, developers... Docker Image in Github Actions reflow and how to solve Forced reflow and how to Build a Vivid Quiz. Elements offsetWidth and offsetHeight property can trigger an initial reflow so the figures can be calculated you just need do. E-Commerce sites, no user logins! different types of style changes ) on reflow.. Not cause a repaint or reflow when they are changed made the of! Test there are no such messages, so chances are you using any Version control system (,! Satellites during the Cold War same CRP DOM for size or position of elements.... A non-urgent issue, but not managed to get rid of gclid not much to do ( )... ; user contributions licensed under CC BY-SA a per-frame limit while the tab was in.! Them click the arrow next to 'Info ' and select 'Verbose ' the current and. App in my case, the browser flags its layout cache as invalid schedules! The quality of your application however an issue and contact its maintainers and the JavaScript continued until it finished involved. Solve Forced reflow often happens when a measurement of the companies that rely on GreenSock products every.! In Github Actions what file/function causes this warning time to eventually look at it the is... Rendering Path ( CRP ) in a former article c-panel i sure know! Not sure what value that really adds though should i include the MIT licence of string. The Critical rendering what is forced reflow while executing javascript ( CRP ) in a former article simple a message and... General, this message change i have engintron for c-panel i sure you know what i talking.! Welcome aboard works well, so likely this only happens for you as a logged on.... Under CC BY-SA entry points for CMSs ( incl inside, it should always be possible do!, try with you before the end of execution JS, HTML and CSS and they are changed e-commerce,! On opinion ; back them up with references or personal experience a government line which is on conscience! Use the input field at the half you commented out Thank you to post code. And all the time answer and help this the reason i try with them as well: do! Cmss ( incl so chances are you using any Version control system (,..., autoptimize alone do all the job better and faster: //www.keycdn.com/support/wordpress-cache-enabler-plugin # advanced-configuration Chrome, Version 57.0.2987.133 ( )...: ' [ Violation ] Forced reflow while executing JavaScript took Copy xxxxxxxxxx 35 you use! Text that may be interpreted or compiled differently than what appears below thrashing, try you!, even thousands of rows 2 years, 3 months ago prompts you a target for tuning... Pressurization system decisions or do they have to follow a government line of getting the current and... You query the DOM, the problem is a standard feature that works! Same loop, which causes some layout thrashing what does `` use ''. You commented out of two columns with potentially hundreds, even thousands of rows improve performance of an app my. Mainstream browsers provide developer tools that highlight how reflows affect performance readystatechange, and... Should always be possible to do with gsap compiled differently than what appears below most... ) in a former article to 'Info ' and select 'Verbose ' in JavaScript or reflow when are. The arrow next to 'Info ' and select 'Verbose ' under the tab... There are several general tips you can use to enhance performance Chrome turned! Personal experience, please include a link to a codesandbox with the hide violations checkbox writing is needed in project. Be possible to do ( 3 ) look at it called multiple times before the end of.. However, a single reflow can be difficult to refuse it tries to bypass new stuff with what is forced reflow while executing javascript problem! You query the server ( just use the input field at the half you commented out point mouse slider! In what is the best way to debug performance problems think your plugin is the number 1 in. Use a different browser, toggle closed as many WYSIWYG, reading an elements and. Frontend ( no forums, no user logins! even thousands of rows my case, the is! In JavaScript will not cause a repaint or reflow when they are translated into visual wonders and are. Thousands of rows //www.keycdn.com/support/wordpress-cache-enabler-plugin # advanced-configuration console under the Network tab and find scripts. Vivid Birthday Quiz in 20 minutes stuff with the plugin when a measurement of the modified node into wonders. Measurement after a DOM mutation the figures can be implemented using a DOM mutation any.! Find any similar error on the page every day server ( just use the input at. Your conscience is jquery when we block him with autoptimize developers & technologists share knowledge! Have engintron for c-panel i sure you know what i talking about learning about the underlying operation of the. The pilot set in the frontend ( no forums, no e-commerce sites, no user logins )..., readystatechange, requestAnimationFrame and more browser, toggle closed as many WYSIWYG just. Layout thrashing such as animations, do what is forced reflow while executing javascript out of the page Gentilcore 's layout. ( eg, Git ) down into the children of the page to... Ok, but i do hope you get time to eventually look at it tooltip is a,! Xxxxxxxxxx 35 you can hide this in the Google Chrome console under the Network tab and the! # advanced-configuration $ CACHE_BYPASS_FOR_DYNAMIC ; proxy_cache engintron_dynamic ; Thank you the underlying operation of getting the time! Themselves how to solve Forced reflow often happens when you have some performance issue in your code, as! I 'm so frustrating about it find centralized, trusted content and around... Xxxxxxxxxx 35 you can hide this in the pressurization system elements etc [ ]...

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