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Service Workers

Last updated on : 2023-03-20

Note:

Service Workers shows a browser compatibility score of 92. This is a collective score out of 100 to represent browser support of a web technology. The higher this score is, the greater is the browser compatibility. The browser compatibility score is not a 100% reflection for every browser and the web technology support. However, it does give you an estimate on how much you should rely on a particular web technology in terms of browser compatibility.

Overview

This specification defines an application programming interface that allows web developers to use persistent background processes: background processes that continue to run even after the user exits the application. This functionality is an extension to the set of features currently offered by HTML5 Web applications.

Specifications

Service Workers

Code snippets

ServiceWorkers.html

Source:ServiceWorkers.html

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     415              416              <!-- just the article content -->417              <article id="wikiArticle">418                419                  420                    <p></p><!-- --><h2 id="Summary">Summary</h2>421<p></p><table class="docstatussummary standard-table"> 422  <thead> 423    <tr> 424 425    <th><a href="../../../Web/API/Index.html">Pages</a></th> 426 427    <th><a href="ServiceWorkers.html#Needs*_tags">Needs* tags</a></th> 428 429    <th><a href="ServiceWorkers.html#Missing_tags">Missing tags</a></th> 430 431    <th><a href="ServiceWorkers.html#Editorial_reviews">Editorial reviews</a></th> 432 433    <th><a href="ServiceWorkers.html#Technical_reviews">Technical reviews</a></th> 434 435    <th><a href="ServiceWorkers.html#Outdated_pages">Outdated pages</a></th> 436 437    <th><a href="ServiceWorkers.html#Missing_pages">Missing pages</a></th> 438 439    <th><a href="ServiceWorkers.html#Dev-doc-needed_bugs">Dev-doc-needed bugs</a></th> 440 441    </tr> 442  </thead> 443  <tbody> 444    <tr> 445 446    <td>117</td> 447 448    <td style="background-color: rgb(255, 255, 153);">7 (6%) </td> 449 450    <td style="background-color: rgb(204, 255, 153);">0 (0%) </td> 451 452    <td style="background-color: rgb(204, 255, 153);">2 (2%) </td> 453 454    <td style="background-color: rgb(255, 204, 204);">52 (45%) </td> 455 456    <td style="background-color: rgb(204, 255, 153);">1 (1%) </td> 457 458    <td style="background-color: rgb(204, 255, 153);">0 (0%) </td> 459 460    <td style="background-color: rgb(204, 255, 153);">0 (0%) </td> 461 462    </tr> 463  </tbody> 464</table> 465 466<p>See also <a href="ServiceWorkers.html#Localizations">localization status</a> of this section.</p> 467 468 469 470 471 472 473<h2 id="Needs*_tags">Needs* tags</h2> 474 475 476<p><strong>Found 7 pages.</strong> Learn more about <a href="https://developer.mozilla.org/en-US/docs/MDN/Contribute/Howto/Tag#Document_metadata">how to deal with meta-tags</a>.</p> 477<div class="wideColumnBox wideColumnBoxList"> 478<ul> 479 480    <li> 481        <strong>NeedsExample</strong> 482        <ul> 483 484            <li><a href="../../../Web/API/Cache/addAll.html">Cache.addAll()</a></li> 485 486            <li><a href="../../../Web/API/Cache/delete.html">Cache.delete()</a></li> 487 488            <li><a href="../../../Web/API/Cache/put.html">Cache.put()</a></li> 489 490            <li><a href="../../../Web/API/Client/frameType.html">Client.frameType</a></li> 491 492            <li><a href="../../../Web/API/Client/id.html">Client.id</a></li> 493 494            <li><a href="../../../Web/API/ServiceWorkerGlobalScope/onpushsubscriptionchange.html">ServiceWorkerGlobalScope.onpushsubscriptionchange</a></li> 495 496            <li><a href="../../../Web/API/ServiceWorkerRegistration/showNotification.html">ServiceWorkerRegistration.showNotification()</a></li> 497 498        </ul> 499    </li> 500 501</ul> 502</div> 503 504<h2 id="Editorial_reviews">Editorial reviews</h2> 505 506 507<p><strong>Found 2 pages.</strong> Learn more about <a href="https://developer.mozilla.org/en-US/docs/MDN/Contribute/Howto/Do_an_editorial_review">how to do an editorial review</a>.</p> 508<div class="wideColumnBox wideColumnBoxList"> 509<ul> 510 511    <li><a href="../../../Web/API/Cache/match.html">Cache.match()</a></li> 512 513    <li><a href="../../../Web/API/CacheStorage/delete.html">CacheStorage.delete()</a></li> 514 515</ul> 516</div> 517 518<h2 id="Technical_reviews">Technical reviews</h2> 519 520 521<p><strong>Found 52 pages.</strong> Learn more about <a href="https://developer.mozilla.org/en-US/docs/MDN/Contribute/Howto/Do_a_technical_review">how to do a technical review</a>.</p> 522<div class="wideColumnBox wideColumnBoxList"> 523<ul> 524 525    <li><a href="../../../Web/API/Cache/delete.html">Cache.delete()</a></li> 526 527    <li><a href="../../../Web/API/Cache/keys.html">Cache.keys()</a></li> 528 529    <li><a href="../../../Web/API/Cache/put.html">Cache.put()</a></li> 530 531    <li><a href="../../../Web/API/CacheStorage/has.html">CacheStorage.has()</a></li> 532 533    <li><a href="../../../Web/API/CacheStorage/keys.html">CacheStorage.keys()</a></li> 534 535    <li><a href="../../../Web/API/CacheStorage/match.html">CacheStorage.match()</a></li> 536 537    <li><a href="../../../Web/API/CacheStorage/open.html">CacheStorage.open()</a></li> 538 539    <li><a href="../../../Web/API/Client/frameType.html">Client.frameType</a></li> 540 541    <li><a href="../../../Web/API/Client/id.html">Client.id</a></li> 542 543    <li><a href="../../../Web/API/Client/postMessage.html">Client.postMessage()</a></li> 544 545    <li><a href="../../../Web/API/Client/url.html">Client.url</a></li> 546 547    <li><a href="../../../Web/API/Clients/claim.html">Clients.claim()</a></li> 548 549    <li><a href="../../../Web/API/Clients/matchAll.html">Clients.matchAll()</a></li> 550 551    <li><a href="../../../Web/API/ExtendableEvent/ExtendableEvent.html">ExtendableEvent.ExtendableEvent()</a></li> 552 553    <li><a href="../../../Web/API/FetchEvent/client.html">FetchEvent.client</a></li> 554 555    <li><a href="../../../Web/API/FetchEvent/isReload.html">FetchEvent.isReload</a></li> 556 557    <li><a href="../../../Web/API/FetchEvent/request.html">FetchEvent.request</a></li> 558 559    <li><a href="../../../Web/API/FetchEvent/respondWith.html">FetchEvent.respondWith()</a></li> 560 561    <li><a href="../../../Web/API/FetchEvent_clone.html">InstallEvent</a></li> 562 563    <li><a href="../../../Web/API/InstallEvent.html">InstallEvent</a></li> 564 565    <li><a href="../../../Web/API/InstallEvent/InstallEvent.html">InstallEvent.InstallEvent()</a></li> 566 567    <li><a href="../../../Web/API/InstallEvent/activeWorker.html">InstallEvent.activeWorker</a></li> 568 569    <li><a href="../../../Web/API/NotificationEvent.html">NotificationEvent</a></li> 570 571    <li><a href="../../../Web/API/NotificationEvent/NotificationEvent.html">NotificationEvent.NotificationEvent()</a></li> 572 573    <li><a href="../../../Web/API/NotificationEvent/action.html">NotificationEvent.action</a></li> 574 575    <li><a href="../../../Web/API/NotificationEvent/notification.html">NotificationEvent.notification</a></li> 576 577    <li><a href="../../../Web/API/PromiseRejection.html">PromiseRejection</a></li> 578 579    <li><a href="../../../Web/API/ServiceWorker/onstatechange.html">ServiceWorker.onstatechange</a></li> 580 581    <li><a href="../../../Web/API/ServiceWorker/scriptURL.html">ServiceWorker.scriptURL</a></li> 582 583    <li><a href="../../../Web/API/ServiceWorker/state.html">ServiceWorker.state</a></li> 584 585    <li><a href="../../../Web/API/ServiceWorkerContainer.html">ServiceWorkerContainer</a></li> 586 587    <li><a href="../../../Web/API/ServiceWorkerContainer/controller.html">ServiceWorkerContainer.controller</a></li> 588 589    <li><a href="../../../Web/API/ServiceWorkerContainer/getRegistration.html">ServiceWorkerContainer.getRegistration()</a></li> 590 591    <li><a href="../../../Web/API/ServiceWorkerContainer/getRegistrations.html">ServiceWorkerContainer.getRegistrations()</a></li> 592 593    <li><a href="../../../Web/API/ServiceWorkerContainer/oncontrollerchange.html">ServiceWorkerContainer.oncontrollerchange</a></li> 594 595    <li><a href="../../../Web/API/ServiceWorkerContainer/onerror.html">ServiceWorkerContainer.onerror</a></li> 596 597    <li><a href="../../../Web/API/ServiceWorkerContainer/onmessage.html">ServiceWorkerContainer.onmessage</a></li> 598 599    <li><a href="../../../Web/API/ServiceWorkerGlobalScope/caches.html">ServiceWorkerGlobalScope.caches</a></li> 600 601    <li><a href="../../../Web/API/ServiceWorkerGlobalScope/oninstall.html">ServiceWorkerGlobalScope.oninstall</a></li> 602 603    <li><a href="../../../Web/API/ServiceWorkerGlobalScope/onpush.html">ServiceWorkerGlobalScope.onpush</a></li> 604 605    <li><a href="../../../Web/API/ServiceWorkerGlobalScope/registration.html">ServiceWorkerGlobalScope.registration</a></li> 606 607    <li><a href="../../../Web/API/ServiceWorkerRegistration/active.html">ServiceWorkerRegistration.active</a></li> 608 609    <li><a href="../../../Web/API/ServiceWorkerRegistration/installing.html">ServiceWorkerRegistration.installing</a></li> 610 611    <li><a href="../../../Web/API/ServiceWorkerRegistration/onupdatefound.html">ServiceWorkerRegistration.onupdatefound</a></li> 612 613    <li><a href="../../../Web/API/ServiceWorkerRegistration/scope.html">ServiceWorkerRegistration.scope</a></li> 614 615    <li><a href="../../../Web/API/ServiceWorkerRegistration/unregister.html">ServiceWorkerRegistration.unregister()</a></li> 616 617    <li><a href="../../../Web/API/ServiceWorkerRegistration/update.html">ServiceWorkerRegistration.update()</a></li> 618 619    <li><a href="../../../Web/API/ServiceWorkerRegistration/waiting.html">ServiceWorkerRegistration.waiting</a></li> 620 621    <li><a href="../../../Web/API/ServiceWorkerState.html">ServiceWorkerState</a></li> 622 623    <li><a href="../../../Web/API/WindowClient/focused.html">WindowClient.focused</a></li> 624 625    <li><a href="../../../Web/API/WindowClient/navigate.html">WindowClient.navigate()</a></li> 626 627    <li><a href="../../../Web/API/WindowClient/visibilityState.html">WindowClient.visibilityState</a></li> 628 629</ul> 630</div> 631 632<h2 id="Outdated_pages">Outdated pages</h2> 633 634 635<p><strong>Found 1 pages.</strong> These pages haven't been updated in over a year. Outdated pages can have problems with both content and format. Look at these pages and consider: Is this page talking about the Web of today? Does it look consistent with newer pages in this topic area? If not, make any needed changes.</p> 636<div class="wideColumnBox wideColumnBoxList"> 637<ul> 638 639    <li><a href="../../../Web/API/FetchEvent_clone.html">InstallEvent</a><br><small>533 days old</small></li> 640 641</ul> 642</div> 643 644 645 646 647 648 649 650 651 652 653 654 655 656<h2 id="Localizations">Localizations</h2> 657<p>Please help us to localize this documentation into different languages. Read more about <a href="https://developer.mozilla.org/en-US/docs/MDN/Contribute/Localize/Translating_pages">how to translate</a>.</p> 658<table class="standard-table"> 659  <thead> 660    <tr> 661        <th>Language</th> 662        <th>Pages</th> 663        <th>Translated</th> 664        <th>Translations up to date</th> 665    </tr> 666  </thead> 667  <tbody> 668     669        <tr> 670            <td><a href="https://developer.mozilla.org/af/docs/MDN/Doc_status/API/ServiceWorkers">af</a></td> 671            <td>117</td> 672            <td>0 (0%)</td> 673            <td>0 (0%)</td> 674        </tr> 675     676        <tr> 677            <td><a href="https://developer.mozilla.org/bn-BD/docs/MDN/Doc_status/API/ServiceWorkers">bn-BD</a></td> 678            <td>117</td> 679            <td>0 (0%)</td> 680            <td>0 (0%)</td> 681        </tr> 682     683        <tr> 684            <td><a href="https://developer.mozilla.org/de/docs/MDN/Doc_status/API/ServiceWorkers">de</a></td> 685            <td>117</td> 686            <td>4 (3%)</td> 687            <td>0 (0%)</td> 688        </tr> 689     690        <tr> 691            <td><a href="https://developer.mozilla.org/es/docs/MDN/Doc_status/API/ServiceWorkers">es</a></td> 692            <td>117</td> 693            <td>3 (2%)</td> 694            <td>0 (0%)</td> 695        </tr> 696     697        <tr> 698            <td><a href="https://developer.mozilla.org/fa/docs/MDN/Doc_status/API/ServiceWorkers">fa</a></td> 699            <td>117</td> 700            <td>0 (0%)</td> 701            <td>0 (0%)</td> 702        </tr> 703     704        <tr> 705            <td><a href="https://developer.mozilla.org/fr/docs/MDN/Doc_status/API/ServiceWorkers">fr</a></td> 706            <td>117</td> 707            <td>44 (37%)</td> 708            <td>12 (27%)</td> 709        </tr> 710     711        <tr> 712            <td><a href="https://developer.mozilla.org/it/docs/MDN/Doc_status/API/ServiceWorkers">it</a></td> 713            <td>117</td> 714            <td>0 (0%)</td> 715            <td>0 (0%)</td> 716        </tr> 717     718        <tr> 719            <td><a href="https://developer.mozilla.org/ja/docs/MDN/Doc_status/API/ServiceWorkers">ja</a></td> 720            <td>117</td> 721            <td>26 (22%)</td> 722            <td>19 (73%)</td> 723        </tr> 724     725        <tr> 726            <td><a href="https://developer.mozilla.org/ko/docs/MDN/Doc_status/API/ServiceWorkers">ko</a></td> 727            <td>117</td> 728            <td>5 (4%)</td> 729            <td>0 (0%)</td> 730        </tr> 731     732        <tr> 733            <td><a href="https://developer.mozilla.org/pl/docs/MDN/Doc_status/API/ServiceWorkers">pl</a></td> 734            <td>117</td> 735            <td>1 (0%)</td> 736            <td>0 (0%)</td> 737        </tr> 738     739        <tr> 740            <td><a href="https://developer.mozilla.org/pt-BR/docs/MDN/Doc_status/API/ServiceWorkers">pt-BR</a></td> 741            <td>117</td> 742            <td>2 (1%)</td> 743            <td>0 (0%)</td> 744        </tr> 745     746        <tr> 747            <td><a href="https://developer.mozilla.org/pt-PT/docs/MDN/Doc_status/API/ServiceWorkers">pt-PT</a></td> 748            <td>117</td> 749            <td>0 (0%)</td> 750            <td>0 (0%)</td> 751        </tr> 752     753        <tr> 754            <td><a href="https://developer.mozilla.org/ro/docs/MDN/Doc_status/API/ServiceWorkers">ro</a></td> 755            <td>117</td> 756            <td>1 (0%)</td> 757            <td>0 (0%)</td> 758        </tr> 759     760        <tr> 761            <td><a href="https://developer.mozilla.org/ru/docs/MDN/Doc_status/API/ServiceWorkers">ru</a></td> 762            <td>117</td> 763            <td>13 (11%)</td> 764            <td>11 (84%)</td> 765        </tr> 766     767        <tr> 768            <td><a href="https://developer.mozilla.org/zh-CN/docs/MDN/Doc_status/API/ServiceWorkers">zh-CN</a></td> 769            <td>117</td> 770            <td>5 (4%)</td> 771            <td>4 (80%)</td> 772        </tr> 773     774        <tr> 775            <td><a href="https://developer.mozilla.org/zh-TW/docs/MDN/Doc_status/API/ServiceWorkers">zh-TW</a></td> 776            <td>117</td> 777            <td>2 (1%)</td> 778            <td>1 (50%)</td> 779        </tr> 780     781</tbody> 782</table> 783 784 785 786 787<div id="json" style="display: none;">{"pages":{"title":"Pages","link":"/en-US/docs/Web/API/Index","counter":117},"needsTags":{"title":"Needs* tags","link":"#Needs*_tags","counter":7,"help":"Learn more about &lt;a href=\"https://developer.mozilla.org/en-US/docs/MDN/Contribute/Howto/Tag#Document_metadata\"&gt;how to deal with meta-tags&lt;/a&gt;."},"requiredTags":{"title":"Missing tags","link":"#Missing_tags","counter":0,"help":"Learn more about &lt;a href=\"https://developer.mozilla.org/en-US/docs/MDN/Contribute/Howto/Tag\"&gt;how to tag pages&lt;/a&gt;."},"editorialReviews":{"title":"Editorial reviews","link":"#Editorial_reviews","counter":2,"help":"Learn more about &lt;a href=\"https://developer.mozilla.org/en-US/docs/MDN/Contribute/Howto/Do_an_editorial_review\"&gt;how to do an editorial review&lt;/a&gt;."},"technicalReviews":{"title":"Technical reviews","link":"#Technical_reviews","counter":52,"help":"Learn more about &lt;a href=\"https://developer.mozilla.org/en-US/docs/MDN/Contribute/Howto/Do_a_technical_review\"&gt;how to do a technical review&lt;/a&gt;."},"outdated":{"title":"Outdated pages","link":"#Outdated_pages","counter":1,"help":"These pages haven't been updated in over a year. Outdated pages can have problems with both content and format. Look at these pages and consider: Is this page talking about the Web of today? Does it look consistent with newer pages in this topic area? If not, make any needed changes."},"missing":{"title":"Missing pages","link":"#Missing_pages","counter":0,"help":"These pages are not yet written. Please help to create them."},"ddn":{"title":"Dev-doc-needed bugs","link":"#Dev-doc-needed_bugs","counter":0}}</div><p></p>788<h2 id="Writing_team">Writing team</h2>789<dl>790 <dt><a href="https://developer.mozilla.org/profiles/chrisdavidmills">chrisdavidmills</a></dt>791 <dd>Active writer.</dd>792 <dt><a href="https://developer.mozilla.org/profiles/jpmedley">jpmedley</a></dt>793 <dd>Active writer</dd>794</dl>795<h2 id="Notes">Notes</h2>796<h3 id="Tagging_standard">Tagging standard</h3>797<ul>798 <li>The grouping tag is: "Service Workers"</li>799</ul>800<h2 id="References">References</h2>801<ul>802 <li><a href="http://www.w3.org/TR/service-workers/" class="external">Specification</a></li>803 <li><a href="http://jakearchibald.com/2014/service-worker-first-draft/" class="external">Service Worker - first draft published</a> (blog post)</li>804 <li>Tracking bug for shipping Service Workers in release builds of Firefox desktop and Android: <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=1059784" class="external" title="FIXED: [meta] Ship Service Workers on desktop on the release channel">bug&nbsp;1059784</a></li>805 <li>Tracking bug for Firefox OS-specific Service Worker issues: <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=1131322" class="external" title="Service Workers for Gaia">bug&nbsp;1131322</a></li>806 <li>Tracking bug for follow-up ("post v1") bugs: <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=1173500" class="external" title="Service Workers follow-on work">bug&nbsp;1173500</a></li>807</ul>808<h2 id="Specifications">Specifications</h2>809<p>The interfaces defined in the following specifications are tracked by this status page:</p>810<table class="spec-table standard-table">811 <tbody>812  <tr>813   <th scope="col">Specification</th>814   <th scope="col">Status</th>815   <th scope="col">Comment</th>816  </tr>817  <tr>818   <td><a href="https://www.w3.org/TR/service-workers/" class="external" lang="en" title="The 'Service Workers' specification" hreflang="en">Service Workers</a></td>819   <td><span class="spec-WD">Working Draft</span></td>820   <td>&nbsp;</td>821  </tr>822 </tbody>823</table>824                  825                826              </article>827              828                <!-- contributors -->829                <div class="wiki-block contributors">830                  <h2 class="offscreen">Document Tags and Contributors</h2>831                  832                  833  <div class="tag-attach-list contributors-sub">834    <i aria-hidden="true" class="icon-tags icon-fw"></i>835    <strong>Tags:</strong>&nbsp;836    <ul class="tags tags-small">837      838        <li><a href="https://developer.mozilla.org/en-US/docs/tag/Documentation status">Documentation status</a></li>839      840        <li><a href="https://developer.mozilla.org/en-US/docs/tag/Meta">Meta</a></li>841      842    </ul>843  </div>844                  845                    <div class="contributors-sub">846                      <i aria-hidden="true" class="icon-group icon-fw"></i>&nbsp;<strong>Contributors to this page:</strong> 847        <a href="https://developer.mozilla.org/en-US/profiles/fscholz">fscholz</a>848    849                    </div>850                  851                  852                    <div class="contributors-sub">853                      <i aria-hidden="true" class="icon-clock-o icon-fw"></i>&nbsp;<strong>Last updated by:</strong>854                      <a href="https://developer.mozilla.org/en-US/profiles/fscholz">fscholz</a>,855                      <time datetime="2015-09-28T04:15:56-07:00">Sep 28, 2015, 4:15:56 AM</time>856                    </div>857                  858                </div>859              860              861                  <div class="newsletter-box">862                    <div class="newsletter">863    <form id="newsletterForm" name="newsletter-form" class="nodisable" 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aboutServiceWorkers.xhtml

Source:aboutServiceWorkers.xhtml

...5<!DOCTYPE html [6<!ENTITY % htmlDTD PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd"> %htmlDTD;7<!ENTITY % globalDTD SYSTEM "chrome://global/locale/global.dtd"> %globalDTD;8<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd"> %brandDTD;9<!ENTITY % serviceworkersDTD SYSTEM "chrome://global/locale/aboutServiceWorkers.dtd"> %serviceworkersDTD;10]>11<html xmlns="http://www.w3.org/1999/xhtml">12    <head>13        <title>&aboutServiceWorkers.title;</title>14        <link rel="stylesheet" href="chrome://global/skin/about.css" type="text/css" />15        <link rel="stylesheet" href="chrome://mozapps/skin/aboutServiceWorkers.css" type="text/css" />16        <script type="application/javascript;version=1.7" src="chrome://global/content/aboutServiceWorkers.js" />17    </head>18    <body id="body">19        <div id="warning_not_enabled" class="warningBackground">20            <div class="warningMessage">&aboutServiceWorkers.warning_not_enabled;</div>21        </div>22        <div id="warning_no_serviceworkers" class="warningBackground">23            <div class="warningMessage">&aboutServiceWorkers.warning_no_serviceworkers;</div>24        </div>25        <div id="serviceworkers" class="tab active">26          <h1>&aboutServiceWorkers.maintitle;</h1>27        </div>28    </body>...

Browser Compatibility

Service Workers on IE is fully supported on None of the versions, partially supported on None of the versions, and not supported on 5.5-11 IE versions.
Service Workers on Edge is fully supported on 17-111, partially supported on None of the versions, and not supported on 12-16 Edge versions.
Service Workers on Firefox is fully supported on 44-113, partially supported on None of the versions, and not supported on 2-43 Firefox versions.
Service Workers on Chrome is fully supported on 45-114, partially supported on 40-44, and not supported on 4-39 Chrome versions.
Service Workers on Safari is fully supported on 11.1-16.4, partially supported on None of the versions, and not supported on 3.2-11 Safari versions.
Service Workers on Opera is fully supported on 32-95, partially supported on 27-31, and not supported on 9.5-26 Opera versions.
Service Workers on Safari on iOS is fully supported on 11.3-16.4, partially supported on None of the versions, and not supported on 3.2-11 Safari on iOS versions.
Service Workers on Android Browser is fully supported on None of the versions, partially supported on 97-111, and not supported on 2.1-4 Android Browser versions.
Service Workers on Opera Mobile is fully supported on 72-73, partially supported on 64-64, and not supported on 10-12 Opera Mobile versions.
Service Workers on Chrome for Android is fully supported on 97-111, partially supported on None of the versions, and not supported on below 97 Chrome for Android versions.
Service Workers on Firefox for Android is fully supported on 95-110, partially supported on None of the versions, and not supported on below 95 Firefox for Android versions.
Service Workers on Samsung Internet is fully supported on 4-20, partially supported on None of the versions, and not supported on below 4 Samsung Internet versions.

High

Browser Compatibility Score

Low

Browser Support For IE Versions

Fully

Partially

5.5-11

No Support

Edge

High

Browser Support For Edge Versions

17-111

Fully

Partially

12-16

No Support

Firefox

High

Browser Support For Firefox Versions

44-113

Fully

Partially

2-43

No Support

Chrome

High

Browser Support For Chrome Versions

45-114

Fully

40-44

Partially

4-39

No Support

Safari

High

Browser Support For Safari Versions

11.1-16.4

Fully

Partially

3.2-11

No Support

Opera

High

Browser Support For Opera Versions

32-95

Fully

27-31

Partially

9.5-26

No Support

Safari on iOS

High

Browser Support For Safari on iOS Versions

11.3-16.4

Fully

Partially

3.2-11

No Support

Android Browser

High

Browser Support For Android Browser Versions

Fully

97-111

Partially

2.1-4

No Support

Opera Mobile

High

Browser Support For Opera Mobile Versions

72-73

Fully

64-64

Partially

10-12

No Support

Chrome for Android

High

Browser Support For Chrome for Android Versions

97-111

Fully

Partially

No Support

Firefox for Android

High

Browser Support For Firefox for Android Versions

95-110

Fully

Partially

No Support

Samsung Internet

High

Browser Support For Samsung Internet Versions

4-20

Fully

Partially

No Support

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Last Modified date

2023-03-20