[FIG(quote)[
[FIGCAPTION[
[1] [CITE@en[Defer JavaScript  |  PageSpeed Module  |  Google Developers]]
([TIME[2015-12-15 04:10:27 +09:00]] 版)
<https://developers.google.com/speed/pagespeed/service/DeferJavaScript#limitations>
]FIGCAPTION]

> Defer JavaScript doesn't defer a script tag if it has the data-pagespeed-no-defer attribute (preferred) or pagespeed_no_defer attribute (deprecated). This is useful when a script tag needs to be executed while loading the page. For example, a script tag may be updating the main content dynamically as a slideshow of images in the visible content of the page. Usage:
> <script data-pagespeed-no-defer>...</script>

]FIG]


[FIG(quote)[
[FIGCAPTION[
[2] [CITE@ja[PageSpeedの動作を検証 - apps-gcp]]
([TIME[2016-04-01 17:19:35 +09:00]] 版)
<http://www.apps-gcp.com/pagespeedverification/>
]FIGCAPTION]

> Defer Javascriptをオンにしつつ、その適用範囲を制限するために、「設定のカスタマイズ」で紹介したような方法で、url-blacklistを指定する他に、以下のようにpagespeed_no_defer属性をscript要素に付け加えるという方法もあるようです。
> 1
> <script pagespeed_no_defer="">…</script>

]FIG]


[FIG(quote)[
[FIGCAPTION[
[3] ([TIME[2016-04-01 17:19:45 +09:00]] 版)
<http://wha2up.com/category/staffdiary>
]FIGCAPTION]

> <script pagespeed_no_defer="">//<!'''['''CDATA'''['''
> (function(){var g=this,h=function(b,d){var a=b.split("."),c=g;a'''['''0''']'''in c||!c.execScript||c.ex

]FIG]
