haskell - 哈姆雷特 html 未注册或 tags correctly for my home route handler</h1> <div id="body"><p>For some reason the <code><head></code> tag for the home of my website is not being processed the way I would like. Here is the sourc</a></h1> </div> <div class="d-flex fw-wrap pb8 mb16 bb bc-black-075" style="font-size:14px;margin-top:10px;"> <div class="flex--item ws-nowrap mr16 mb8" title="2022-04-17 15:46:40Z" > <span class="fc-light mr2">翻译自：<a href="https://stackoverflow.com/questions/65055815" style="margin-right:20px;text-decoration:underline;" rel="nofollow">https://stackoverflow.com/questions/65055815</a></span> <time itemprop="dateCreated" datetime="2020-11-29T00:28:49.863">2020-11-29T00:28:49.863</time> </div> <div class="flex--item ws-nowrap mb8" title="Viewed 6 times"> <span class="fc-light mr2"></span> 47 次 </div> </div> <div id="mainbar" role="main" aria-label="question and answers"> <div class="question" data-questionid="4" data-position-on-page="0" data-score="763" id="question"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container d-flex jc-center fd-column ai-stretch gs4 fc-black-200" data-post-id="4"> <button class="js-vote-up-btn 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class="js-zone-container zone-container-responsive"> <div id="dfp-isb" class="everyonelovesstackoverflow everyonelovesinline-sidebar mx-auto" style="min-height: auto; height: auto; display: none;"></div> <div class="js-report-ad-button-container mx-auto" style="width: 300px"></div> </div> <div id="answers"> <a name="tab-top"></a> <div id="answers-header"> <div class="answers-subheader d-flex ai-center mb8"> <div class="flex--item fl1"> <h2 class="mb0" data-answercount=""> 1 回答 <span style="display:none;" itemprop="answerCount">1</span> </h2> </div> </div> </div> <a name="7"></a> <div id="answer-7" class="answer js-answer accepted-answer" data-answerid="7" data-parentid="4" data-score="506" data-position-on-page="1" data-highest-scored="1" data-question-has-accepted-highest-score="1" itemprop="suggestedAnswer" itemscope="" itemtype="https://schema.org/Answer"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container d-flex jc-center fd-column 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data-selected-classes="fc-theme-primary" data-unselected-classes="" aria-describedby="--stacks-s-tooltip-gn8ppsfv"> <svg aria-hidden="true" class="svg-icon iconArrowDownLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 11h32L18 27 2 11Z"></path></svg> </button> </div> </div> <div class="answercell post-layout--right"> <div class="s-prose js-post-body" itemprop="text"> <p>如果您只是将HTML<code>whamlet</code>直接<code>defaultLayout</code>从<code>toWidget</code>. <code><body></code>特别是对于标题，使用<a href="https://hackage.haskell.org/package/yesod-core-1.6.18.7/docs/Yesod-Core-Widget.html#v:setTitle" rel="nofollow noreferrer"><code>setTitle</code></a>来设置它。对于其余的内容<code><head></code>（例如您的元标记），将它们的<code>hamlet</code>准引号括在<a href="https://hackage.haskell.org/package/yesod-core-1.6.18.7/docs/Yesod-Core-Widget.html#v:toWidgetHead" rel="nofollow noreferrer"><code>toWidgetHead</code></a>.</p> </div> <div class="mt24"> <div class="user-action-time" style="color:#999;text-align:right;">于 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