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我正在構建聚合物應用程序，並且在大多數頁面上以及在大多數環境中，paper-dialog正常工作。然而，在iOS上的paper-dialog不斷顯示出來的背景：紙質對話框出現在背景中
對話框代碼如下：
<div class="fit layout vertical center-center">
<div class="fit layout horizontal large">
<div class="mdl-layout mdl-js-layout">
<main class="mdl-layout__content" on-scroll="_onTrack">
<!-- code here is irrelevent -->
</main>
<paper-dialog class="interest-dialog" modal>
<div class="interest-form">
<center><h2>Interested in this job?</h2></center>
<paper-radio-group selected="Yes" id="interest-response">
<paper-radio-button class="interest-radio-button" name="Yes" value="yes">Yes, I'm interested</paper-radio-button><br />
<paper-radio-button class="interest-radio-button" name="Maybe" value="maybe">Maybe</paper-radio-button><br />
<paper-radio-button class="interest-radio-button" name="No" value="no">No, not for me</paper-radio-button>
</paper-radio-group>
<paper-input
type="email"
class="email-paper-input"
label="email address"
autofocus
error-message="Please input a valid email"
required>
</paper-input>
</div>
<div class="buttons">
<paper-button
class="submit-interest-button"
on-click="_submitInterest">
Submit
</paper-button>
<paper-button
class="dismiss-interest-button"
dialog-dismiss
on-click="_closeInterestDialog">
Cancel
</paper-button>
</div>
</paper-dialog>
</div>
</div>
</div>
，我使用jQuery的，當用戶點擊打開對話框晶圓廠：
$('.interest-dialog')[0].open();