{"id":2056,"date":"2019-01-03T18:07:18","date_gmt":"2019-01-03T10:07:18","guid":{"rendered":"https:\/\/feizhaojun.com\/?p=2056"},"modified":"2019-01-03T19:21:28","modified_gmt":"2019-01-03T11:21:28","slug":"google-web-%e6%9b%b4%e6%96%b02017%e5%b9%b46%e6%9c%88%ef%bc%9adomexception-the-play-request-was-interrupted","status":"publish","type":"post","link":"https:\/\/feizhaojun.com\/?p=2056","title":{"rendered":"Google Web \u66f4\u65b0(2017\u5e746\u6708)\uff1aDOMException The play() request was interrupted"},"content":{"rendered":"

\u82f1\u6587\u539f\u6587\uff1aDOMException: The play() request was interrupted<\/a><\/p>\n

\n

\u4f60\u662f\u4e0d\u662f\u521a\u521a\u5728Chrome\u6d4f\u89c8\u5668\u7684\u63a7\u5236\u53f0Console\u91cc\u9047\u5230\u4e86\u8fd9\u4e2a\u672a\u9884\u6599\u7684\u5a92\u4f53\u9519\u8bef\uff1f<\/p>\n

Uncaught (in promise) DOMException: The play() request was interrupted by a call to pause().\n<\/code><\/pre>\n
\u6216\u8005<\/p>\n
Uncaught (in promise) DOMException: The play() request was interrupted by a new load request.\n<\/code><\/pre>\n
\u4e0d\u8981\u6015\uff0c \u4e0b\u9762\u5c31\u6765\u89e3\u91ca\u9519\u8bef\u7684\u539f\u56e0\u548c\u89e3\u51b3\u65b9\u6cd5\u3002<\/p>\n
\u9519\u8bef\u539f\u56e0<\/h4>\n
\u4e0b\u9762\u7684JavaScript\u4ee3\u7801\u518d\u73b0\u4e86\u4f60\u9047\u5230\u7684\u201cUncaught (in promise)\u201d\u9519\u8bef\uff1a<\/p>\n
\u9519\u8bef\u4ee3\u7801\uff1a<\/strong><\/p>\n
<video id=\"video\" preload=\"none\" src=\"https:\/\/example.com\/file.mp4\"><\/video>\n\n<script>\n  video.play(); \/\/ <-- This is asynchronous!\n  video.pause();\n<\/script>\n<\/code><\/pre>\n
\u4e0a\u9762\u4ee3\u7801\u8fd0\u884c\u540e\u5728Chrome\u63a7\u5236\u53f0\u7684\u9519\u8bef\u4fe1\u606f\uff1a<\/p>\n
Uncaught (in promise) DOMException: The play() request was interrupted by a call to pause().\n<\/code><\/pre>\n
\u7531\u4e8e\u6807\u7b7e\u5c5e\u6027 preload=\"none\"<\/strong> \u89c6\u9891\u6ca1\u6709\u52a0\u8f7d\uff0c\u5728\u6267\u884c\u4e86 video.play()<\/strong> \u4e4b\u540e\uff0c\u89c6\u9891\u4e0d\u4e00\u5b9a\u4f1a\u7acb\u5373\u64ad\u653e\u3002<\/p>\n
\u800c\u4e14\uff0c\u4ece Chrome 50<\/a> \u5f00\u59cb, <video>\u6216<audio>\u5143\u7d20\u8c03\u7528play()<\/strong> \u65b9\u6cd5\u5c06\u4f1a\u8fd4\u56de\u4e00\u4e2aPromise<\/a>\uff0c\u4e00\u4e2a\u5f02\u6b65\u8fd4\u56de\u5355\u4e00\u7ed3\u679c\u7684\u51fd\u6570\u3002\u5982\u679c\u64ad\u653e\u6210\u529f\u6267\u884c\uff0cPromise \u4f1a\u6267\u884c\uff08fulfilled\uff09\uff0c\u540c\u65f6\u4f1a\u89e6\u53d1\u5a92\u4f53\u7684playing<\/strong>\u4e8b\u4ef6\u3002\u5982\u679c\u64ad\u653e\u5931\u8d25\uff0cPromise\u4f1a\u88ab\u62d2\u7edd\u6267\u884c\uff0c\u5e76\u4e14\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\u9610\u8ff0\u5931\u8d25\u539f\u56e0\u3002<\/p>\n
\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\u53d1\u751f\u4e86\u8fd9\u4e9b\u4e8b\u60c5\uff1a<\/p>\n
    \n
  1. video.play()<\/strong> \u8bd5\u56fe\u5f02\u6b65\u52a0\u8f7d\u89c6\u9891\u5185\u5bb9\u3002<\/li>\n
  2. video.pause()<\/strong> \u4e2d\u65ad\u89c6\u9891\u52a0\u8f7d\uff0c\u56e0\u4e3a\u5e76\u6ca1\u6709\u771f\u6b63\u7684\u51c6\u5907\u597d\u64ad\u653e\u3002<\/li>\n
  3. video.play()<\/strong> \u663e\u5f0f\u5730\u62d2\u7edd\u5f02\u6b65\u52a0\u8f7d\u3002<\/li>\n<\/ol>\n
    \u8fd9\u65f6\u5019\u56e0\u4e3a\u6211\u4eec\u6ca1\u6709\u5728\u4ee3\u7801\u91cc\u5bf9\u89c6\u9891\u64ad\u653e\u7684Promise\u8fdb\u884c\u5904\u7406\uff0c\u6240\u4ee5Chrome\u63a7\u5236\u53f0\u629b\u51fa\u4e00\u4e2a\u9519\u8bef\u3002<\/p>\n
    \n  \u63d0\u793a\uff1a\u5524\u8d77 video.pause()<\/strong> \u5e76\u4e0d\u662f\u4e2d\u65ad\u89c6\u9891\u7684\u552f\u4e00\u9014\u5f84\u3002\u4f60\u53ef\u4ee5\u7528 video.load()<\/strong> \u548c video.src=''<\/strong> \u5b8c\u5b8c\u5168\u5168\u5730\u91cd\u7f6e\u89c6\u9891\u7684\u64ad\u653e\u72b6\u6001\uff0c\u5305\u62ec\u89c6\u9891\u7f13\u51b2\u3002\n<\/p><\/blockquote>\n
    \u89e3\u51b3\u65b9\u6cd5<\/h4>\n
    \u73b0\u5728\u6211\u4eec\u4e86\u89e3\u4e86\u95ee\u9898\u7684\u6839\u6e90\uff0c\u7136\u540e\u6765\u770b\u770b\u5982\u4f55\u89e3\u51b3\u3002<\/p>\n
    \u9996\u5148\uff0c\u4e0d\u8981\u6063\u610f\u7684\u53bb\u64ad\u653e\u7f51\u9875\u4e2d\u7684\u5a92\u4f53\u6587\u4ef6\u3002\u67e5\u770b play \u65b9\u6cd5\u8fd4\u56de\u7684Promise\u662f\u5426\u88ab\u62d2\u7edd\u6267\u884c\u3002\u5982\u679c\u64ad\u653e\u6ca1\u6709\u771f\u6b63\u7684\u5f00\u59cb\uff0cPromise\u4e0d\u4f1a\u6709\u4efb\u4f55\u503c\uff0c\u4e5f\u4e0d\u4f1a\u5f80\u4e0b\u6267\u884c\uff0c\u4e0b\u9762\u793a\u4f8b\u4e2d then()<\/strong> \u91cc\u9762\u7684\u4ee3\u7801\u4e5f\u4e0d\u4f1a\u6267\u884c\u3002<\/p>\n
    \u793a\u4f8b\uff1a\u81ea\u52a8\u64ad\u653e\uff08Autoplay\uff09<\/p>\n
    <video id=\"video\" preload=\"none\" src=\"https:\/\/example.com\/file.mp4\"><\/video>\n\n<script>\n  \/\/ Show loading animation.\n  var playPromise = video.play();\n\n  if (playPromise !== undefined) {\n    playPromise.then(_ => {\n      \/\/ Automatic playback started!\n      \/\/ Show playing UI.\n    })\n    .catch(error => {\n      \/\/ Auto-play was prevented\n      \/\/ Show paused UI.\n    });\n  }\n<\/script>\n<\/code><\/pre>\n
    \u793a\u4f8b\uff1a\u64ad\u653e\uff08Play\uff09\u548c\u505c\u6b62\uff08Pause\uff09<\/p>\n
    <video id=\"video\" preload=\"none\" src=\"https:\/\/example.com\/file.mp4\"><\/video>\n\n<script>\n  \/\/ Show loading animation.\n  var playPromise = video.play();\n\n  if (playPromise !== undefined) {\n    playPromise.then(_ => {\n      \/\/ Automatic playback started!\n      \/\/ Show playing UI.\n      \/\/ We can now safely pause video...\n      video.pause();\n    })\n    .catch(error => {\n      \/\/ Auto-play was prevented\n      \/\/ Show paused UI.\n    });\n  }\n<\/script>\n<\/code><\/pre>\n
    \u8fd9\u4e2a\u793a\u4f8b\u5f88\u68d2\uff0c\u4f60\u4ee5\u540e\u662f\u4e0d\u662f\u77e5\u9053\u5982\u4f55\u7528 video.play()<\/strong>  \u6765\u64ad\u653e\u89c6\u9891\u4e86\uff1f<\/p>\n
    \u544a\u8bc9\u4f60\u4e00\u4e2a\u79d8\u5bc6\uff0c\u4e0d\u9700\u8981 video.play()<\/strong>\uff0c\u4f60\u53ef\u4ee5\u7528 video.load()<\/strong>\u3002\u50cf\u8fd9\u6837\uff1a<\/p>\n
    \u793a\u4f8b\uff1a\u83b7\u53d6\uff08Fetch\uff09\u548c\u64ad\u653e\uff08Play\uff09<\/p>\n
    <video id=\"video\"><\/video>\n<button id=\"button\"><\/button>\n\n<script>\n  button.addEventListener('click', onButtonClick);\n\n  function onButtonClick() {\n    \/\/ This will allow us to play video later...\n    video.load();\n    fetchVideoAndPlay();\n  }\n\n  function fetchVideoAndPlay() {\n    fetch('https:\/\/example.com\/file.mp4')\n    .then(response => response.blob())\n    .then(blob => {\n      video.srcObject = blob;\n      return video.play();\n    })\n    .then(_ => {\n      \/\/ Video playback started ;)\n    })\n    .catch(e => {\n      \/\/ Video playback failed ;(\n    })\n  }\n<\/script>\n<\/code><\/pre>\n
    \u64ad\u653e\u7684promise\u652f\u6301<\/h4>\n
    \u76ee\u524d\uff0c\u5728Chrome<\/a>, Firefox, Opera, and Safari<\/a>\u6d4f\u89c8\u5668\u4e2d HTMLMediaElement.play()<\/strong> \u53ef\u4ee5\u8fd4\u56depromise\u3002Edge<\/a>\u8fd8\u5728\u7814\u53d1\u4e2d\u3002<\/p>\n
    \u8b66\u544a<\/h4>\n
    \u5305\u542b\u5728<video>\u91cc\u9762\u7684<source> \u4f1a\u8ba9 play() \u7684 promise \u6c38\u8fdc\u4e0d\u4f1a\u62d2\u7edd<\/p>\n
    \u6bd4\u5982<video src=\"not-existing-video.mp4\">, \u5982\u679c\u89c6\u9891\u4e0d\u5b58\u5728\uff0cplay() promise \u4f1a\u62d2\u7edd\u6267\u884c. \u800c<video><source src=\"not-existing-video.mp4\" type='video\/mp4'><\/video>\u4e2d play() promise \u4e0d\u4f1a\u62d2\u7edd\u3002\u8fd9\u79cd\u60c5\u51b5\u53ea\u4f1a\u5728\u6ca1\u6709\u53ef\u7528\u7684\u8d44\u6e90\u6587\u4ef6\u65f6\u89e6\u53d1\u3002<\/p>\n
    Chromium Bug<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
    \u82f1\u6587\u539f\u6587\uff1aDOMException: The play() request was interrupted \u4f60\u662f\u4e0d\u662f\u521a\u521a…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3,28],"tags":[],"class_list":["post-2056","post","type-post","status-publish","format-standard","hentry","category-fe","category-28"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/posts\/2056","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2056"}],"version-history":[{"count":9,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/posts\/2056\/revisions"}],"predecessor-version":[{"id":2109,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/posts\/2056\/revisions\/2109"}],"wp:attachment":[{"href":"https:\/\/feizhaojun.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2056"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}