Lazy Load

Beskrivning

Lazy Load displays images and/or iframes on a page only when they are visible to the user. This reduces the number of HTTP requests mechanism and improves the loading time.

You can lazy load thumbnails, all images in a post content or in a widget text, avatars, smilies and iframes. No JavaScript library such as jQuery is used and the script weight is less than 10KB.

You can also replace Youtube iframes by a preview thumbnail to further speed up the loading time of your website.

Turn on lazy load to optimize your images and make your website faster!

Beroenden

Lazy load script: https://github.com/verlok/lazyload

Relaterade tillägg

  • Imagify: Bästa bildoptimeraren för att snabba upp din webbplats med komprimerade bilder.
  • WP Rocket: Bästa cache-tillägget för att snabba upp din WordPress-webbplats.
  • Heartbeat Control by WP Rocket: Heartbeat Control by WP Rocket: Best plugin to control the WordPress Heartbeat API and reduce CPU usage.

Installation

  1. Ladda upp hela mappen rocket-lazy-load till katalogen /wp-content/plugins/
  2. Aktivera tillägget via menyn ”Tillägg” i WordPress

Vanliga frågor

How can I use native lazyload?

To use native lazyload on browsers supporting this feature, you need to use the following line:

add_filter( 'rocket_use_native_lazyload', '__return_true' );

Browsers that do not support native lazyload will use the JS-based solution as before.

Hur kan jag inaktivera Lazy Load på vissa sidor?

Du kan använda filtret do_rocket_lazyload.

Here is an example to put in functions.php files that disable lazyload on posts:

add_action( 'wp', 'deactivate_rocket_lazyload_on_single' );
function deactivate_rocket_lazyload_on_single() {
    if ( is_single() ) {
        add_filter( 'do_rocket_lazyload', '__return_false' );
    }
}

Hur kan jag inaktivera Lazy Load på vissa bilder?

Simply add a data-no-lazy="1" property in you img or iframe tag.

You can also use the filters rocket_lazyload_excluded_attributes or rocket_lazyload_excluded_src to exclude specific patterns.

For iframes, the filter is rocket_lazyload_iframe_excluded_patterns.

How can I change the threshold to trigger the load?

Du kan använda filtret rocket_lazyload_threshold.

Code sample:

function rocket_lazyload_custom_threshold( $threshold ) {
    return 100;
}
add_filter( 'rocket_lazyload_threshold', 'rocket_lazyload_custom_threshold' );

Jag använder tillägg X och mina bilder visas inte längre

Some plugins are not compatible without lazy loading. Please open a support thread, and we will see how we can solve the issue by excluding lazy loading for this plugin.

How can I lazy load a background-image?

The plugin will automatically lazy load background-images set with a style attribute to a div element:

<div style="background-image: url(image.jpg);">

You can also apply it manually. The element you want to apply lazy load on must have this specific markup:

<div class="rocket-lazyload" data-bg="url(../img/image.jpg)"></div>

The element must have the class rocket-lazyload, and a data-bg attribute, which value is the CSS url for the image.

Recensioner

21 augusti, 2020
I haven't tested the other features, but iFrames and vimeo videos look and work great! It has better behavior with vimeo videos than others that I tried. Increases PageSpeed score.
17 juni, 2020
My GT metrix scores are 100% without lazy load. The newest Google Page Speed critera made me look for a lazy load plugin. This one is the Only one that occasionally brings me to 100 on Page Speed. Unfortunately, it breaks 2 of my footer scripts and tiny thumbnail pics for them. I doubt any other plugin will bring my site up to this proportion,,,,,but what can you do? GREAT PLUGIN
Läs alla 110 betyg

Bidragsgivare och utvecklare

”Lazy Load” är programvara med öppen källkod. Följande personer har bidragit till detta tillägg.

Bidragande personer

”Lazy Load” har översatts till 7 språk. Tack till översättarna för deras bidrag.

Översätt ”Lazy Load” till ditt språk.

Intresserad av programutveckling?

Läs programkoden, kika på SVN-filförvaret eller prenumerera på utvecklarloggen via RSS.

Ändringslogg

2.3.4

Enhancement: Allow <a> tags to lazyload background images
Enhancement: Add tag to lazyloaded picture elements
Bugfix: Prevent a Fatal error related to the League Container package conflict with WooCommerce 4.4
Bugfix: Update lazyload for background images support for new version of lazyload script
Bugfix: Correctly apply the rocket-lazyload class on elements with a background-image and an empty class value
Bugfix: Correctly apply the rocket-lazyloadclass on elements with malformed HTML
Bugfix: Prevent a display issue with background-images when using different types of quotes around the URL
Bugfix: Prevent Layout from breaking when alt attribute has any html encoded characters

2.3.3

Enhancement: Add data-skip-lazy and skip-lazy class to exclusions list as part of the interoperability initiative between lazyload plugins
Enhancement: Use native lazyload only if filter rocket_use_native_lazyload is true
Enhancement: Apply lazyload on background images set on figure elements
Bugfix: Correctly add the rocket-lazyload class when class attribute is empty on an element with a background image
Bugfix: Correctly replace YouTube iframe with preview image when using relative protocol
Bugfix: Preserve youtube-nocookie.com during LazyLoad

2.3.2

Bugfix: Incorrect characters used in Youtube thumbnail HTML code

2.3.1

Bugfix: Prevent a conflict with WP Rocket
Bugfix: apply loading=”lazy” on Youtube thumbnail
Bugfix: Add autoplay attribute on iframe loaded with Youtube thumbnail

2.3

Enhancement: Add support for browser native lazyload
Bugfix: Prevent broken image in some cases for picture element
Bugfix: Prevent wrong lazy attributes for srcset and sizes on an image inside a picture element

2.2.3

  • Enhancement: Improve compatibility for the picture element
  • Enhancement: Apply lazyload on background images set on section, span and li elements
  • Enhancement: also pass $width and $height values to the rocket_lazyload_placeholder filter
  • Bugfix: Use 0 instead of 1 for the default placeholder dimensions to improve compatibility
  • Bugfix: Improve infinite scroll support
  • Bugfix: Exclude Enfold avia-background-fixed background images and data-large_image from lazyload

2.2.2

  • Bugfix: Auto-exclude data-height-percentage attribute to prevent display issues
  • Bugfix: Correctly handle responsive videos using fitVids again

2.2.1

  • Enhancement: add a way to customize the lazyload script options
  • Bugfix: Prevent error on Internet Explorer 11
  • Bugfix: Prevent conflict with WooCommerce variation swatches
  • Bugfix: Prevent empty src when the image is an inline base64
  • Bugfix: Prevent issue when the original src attribute uses single quotes

2.2

  • Enhancement: Update lazyload script to the latest version
  • Enhancement: Use the dimensions of the original image for the placeholder size when possible, to reduce content reflow
  • Enhancement: Ignore images using the new loading attribute introduce by Chrome for browser-native lazyload

2.1.5

  • Bugfix: Prevent matching with the wrong data when a data-style attribute is on a div for background images
  • Remove data-cfasync=”false” by default
  • Enhancement: Add filter rocket_lazyload_script_tag to modify the lazyload script HTML if needed
  • Enhancement: Add data-no-minify attribute to the lazyload script tag to prevent it from being combined by JS combiners
  • Enhancement: Improve MutationObserver code to only call the lazyload update method if an image/iframe or element with .rocket-lazyload is contained in the new node(s) added to the DOM

2.1.4

  • Regression fix: Correctly exclude scripts from lazyload again

2.1.3

  • Bugfix: Ignore content inside noscript tags to prevent modifying them and causing some display issues

2.1.2

  • Enhancement: Update lazyload script to the latest version
  • Enhancement: Add a way to lazyload the Youtube thumbnail image
  • Enhancement: Add width and height attributes to the Youtube thumbnail image depending on the resolution
  • Enhancement: Disable polyfill for intersectionObserver by default, added a way to activate it instead
  • Enhancement: Add data-cfasync=”false” to the lazyload script tag
  • Enhancement: Prevent lazyload on the Oxygen Builder page editor
  • Bugfix: Wrap no JS CSS in noscript tag and remove the no-js identifier

2.1.1

  • Bugfix: Correctly apply lazyload on picture elements
  • Bugfix: Prevent double loading of an image when an img element inside a picture element only has a srcset attribute and no src attribute

2.1

  • Enhancement: Update lazyload script to the latest version
  • Enhancement: Apply lazyload on picture elements found on the page
  • Enhancement: Apply lazyload on div elements with a background image found on the page. See FAQ for more info.

2.0.4

  • Enhancement: Add filter for iframe lazyload pattern exclusion
  • Enhancement: Auto-exclude soliloquy-image pattern from lazyload
  • Bugfix: Prevent issue when an image/iframe is duplicated on the same page
  • Bugfix: Prevent W3C validation error for the SVG placeholder

2.0.3.2

  • Bugfix: Correctly ignore inline scripts with line breaks inside

2.0.3.1

  • Bugfix: Correct an issue preventing lazyload from working

2.0.3

  • Bugfix: Prevent incorrect display if JavaScript is disabled
  • Bugfix: Don’t apply lazyload on Divi/Extra/Beaver Builder Editor pages
  • Bugfix: Use the correct URL for each iframe when multiple iframes are on the same page
  • Bugfix: Ignore content inside inline script tags to prevent applying lazyload in it

2.0.2

  • Bugfix: Fix an error in the compatibility for the AMP plugin

2.0.1

  • Bugfix: Prevent a fatal error on case sensitive operating systems

2.0

  • Enhancement: Lazyload is now applied on the template_redirect hook, which should allow the plugin to apply the optimization on more images and encountering less conflicts at the same time
  • Enhancement: Specifically target with the lazyload script images/iframes elements with a data-lazy-src attribute
  • Enhancement: Update lazyload script to the latest version
  • Enhancement: Possibility to apply lazyload on background-images with a specific markup, see FAQ
  • Enhancement: Use a svg image as placeholder instead of a base64 gif
  • Bugfix: Only use MutationObserver if available in the browser
  • Bugfix: When using the Youtube thumbnail option, correctly format the Youtube query if the video URL is encoded
  • Bugfix: Improve iframe matching to prevent unexpected results
  • Bugfix: Update CSS for the Youtube thumbnail option to prevent issue with the Gutenberg embeds block

1.4.9

  • Förbättring: Uppdatera lazyload-skript till den senaste tillgängliga versionen
  • Enhancement: Use lazy-sizes to prevent W3C validation error when sizes is defined but srcset is not
  • Enhancement: Parse images or iframes only if the element is selected to be lazyloaded in the options
  • Fix: Prevent warning for lazyload+v in Google Search Console
  • Fix: Prevent PHP Notice with WooCommerce for product images

1.4.8

  • Obs! Minsta WordPress-version som krävs är nu 4.7
  • Enhancement: Update lazyload script version
  • Enhancement: Remove placeholder image to improve perceived loading time
  • Enhancement: Compatibility with Youtube privacy URL
  • Enhancement: Update play image to match Youtube logo
  • Förbättrat: Stöd för Youtube URL-parametrar
  • Enhancement: Lazyload images displayed with wp_get_attachment_image(). /!\ no fallback if JavaScript is disabled
  • Fix: Use the correct size set in srcset for the lazyloaded image
  • Fix: Prevent Youtube thumbnail replacement on playlists
  • Fix: Prevent iframe lazyload on AMP pages
  • Åtgärdat: Korrigerat textdomän för översättningar (tack @ Chantal Coolsma)

1.4.7

  • Fix compatibility with infinite scroll
  • Prevent lazyload on masterSlider images

1.4.6

  • Correctly include version 8.5.2 of lazyload script
  • Prevent 404 error on lazyload script if URL contains ”-v”

1.4.5

  • Rename Setting Page Name in WP Menu
  • New Product Banner in Settings Page
  • Conditionally load a different version of the script depending on browser support of IntersectionObserver
  • Fix a bug where images initially hidden are not correctly displayed when coming into view (slider, tabs, accordion)

1.4.4

  • Admin Redesign

1.4.3

  • Plugin is compatible again with PHP < 5.4

1.4.2

  • Uppdaterat lazyload-skript för att få tillbaka kompatibilitet med IE9/10

1.4.1

  • Åtgärdat fel som orsakade en alltför aggressiv upprensning

1.4

  • New option: replace Youtube videos by thumbnail. This option can improve your loading time a lot, especially if you have multiple videos on the same page

1.3.3

  • 2017-09-16
  • Förhindra att skript och stilar tas bort under HTML-analysering

1.3.2

  • 2017-09-12
  • Fix images not displaying in certain conditions because image attributes exclusion was not working correctly

1.3.1

  • 2017-09-07
  • Don’t apply lazyload on Divi slider

1.3

  • 2017-09-01
  • Förbättrat HTML-analysering av bilder och iframes för att bli snabbare och effektivare
  • Make the lazyload compatible with fitVids for iframes
  • Don’t apply lazyload on AMP pages (compatible with AMP plugin from Automattic)
  • Use about:blank as default iframe placeholder to prevent warning in browser console
  • Don’t apply lazyload on upPrev thumbnail

1.2.1

  • 2017-08-22
  • Åtgärdat saknat lazyload-skript
  • Don’t lazyload for images in REST API requests

1.2

  • 2017-08-22
  • Update lazyload script to latest version
  • Change the way the script is loaded

1.1.1

  • 2017-02-13
  • Bug fix: Remove use of short tag to prevent 500 error on some installations

1.1

  • 2017-02-12
  • Nytt
    • JS-bibliotek uppdaterat
    • Stöd för iFrame
    • Support for srcset and sizes
    • New options page

1.0.4

  • 2015-04-28
  • Bug Fix: Resolved a conflict between LazyLoad & Emoji since WordPress 4.2

1.0.3

  • 2015-01-08
  • Bug Fix: Don’t apply LazyLoad on captcha from Really Simple CAPTCHA to prevent conflicts.

1.0.2

  • 2014-12-28
  • Improvement: Add « rocket_lazyload_html » filter to manage the output that will be printed.

1.0.1.1

  • 2014-07-25
  • Fix stupid error with new regex in 1.0.1

1.0.1

  • 2014-07-16
  • Bug Fix: when a IMG tag or content (widget or post) contains the string ”data-no-lazy”, all IMG tags were ignored instead of one.
  • Security fix: The preg_replace() could lead to a XSS vuln, thanks to Alexander Concha
  • Code compliance

1.0

  • 2014-01-01
  • Initial release.