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PO
primarykey
Id
7383189
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
11
CommunityOwnedDate
CreationDate
2011-09-12T04:03:03.163
FavoriteCount
0
LastActivityDate
2011-09-12T06:34:28.190
LastEditDate
2017-05-23T12:10:06.433
LastEditorUserId
-1
OwnerUserId
0
ParentId
7383163
PostTypeId
2
Score
1
ViewCount
0
LastEditorDisplayName
user529649
text
Body
<p>Look at these functions:</p> <pre><code>$.ajax({ url:'CSS URL HERE', type:'HEAD', error: function() { AddLocalCss(); }, success: function() { //file exists } }); </code></pre> <p>And here is vanilla JavaScript version: </p> <pre><code>function UrlExists(url) { var http = new XMLHttpRequest(); http.open('HEAD', url, false); http.send(); return http.status!=404; } if (!UrlExists('CSS URL HERE') { AddLocalCss(); } </code></pre> <p>Now the actual function:</p> <pre><code>function AddLocalCss(){ document.write('<link rel="stylesheet" type="text/css" href=" LOCAL CSS URL HERE">') } </code></pre> <p>Just make sure AddLocalCss is called in the head.</p> <p>You might also consider using one of the following ways <a href="https://stackoverflow.com/questions/805384/how-to-apply-inline-and-or-external-css-loaded-dynamically-with-jquery/805406#805406">explained in this answer</a>:</p> <p>Load using AJAX</p> <pre><code>$.get(myStylesLocation, function(css) { $('<style type="text/css"></style>') .html(css) .appendTo("head"); }); </code></pre> <p>Load using dynamically-created </p> <pre><code>$('<link rel="stylesheet" type="text/css" href="'+myStylesLocation+'" >') .appendTo("head"); Load using dynamically-created <style> $('<style type="text/css"></style>') .html('@import url("' + myStylesLocation + '")') .appendTo("head"); </code></pre> <p>or</p> <pre><code>$('<style type="text/css">@import url("' + myStylesLocation + '")</style>') .appendTo("head"); </code></pre>
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1. POHow to fallback to local stylesheet (not script) if CDN fails
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1. COwould this download the css?
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  USShawn Mclean
2. COYes, at least in modern browser, I am not sure about IE6.
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3. COIs there a way to just check instead of downloading the whole thing?
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