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POSet remote cookie with script-tag?
 

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  1. POSet remote cookie with script-tag?
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    <p>Scenario:</p> <ol> <li><p>User visits <code>http://some-site.test/form.html</code>. The page contains a form:</p> <pre><code>&lt;form action="http://example.com/search" method="post"&gt; ... </code></pre></li> <li><p>User fills out and submits the form.</p></li> <li><p>The action <code>http://example.com/search</code> performs a search and shows the result, but <em>only</em> if a cookie has been sent together with the form data:</p> <pre><code>ASP.NET_SessionId=... </code></pre> <p>In other words: A session needs to be already established with <code>example.com</code>, or otherwise search will not work. I have no idea why that is the case, and I currently have to way to contact the person in charge of search.</p></li> </ol> <p>As a workaround, I added a script tag in <code>form.html</code>:</p> <pre><code>&lt;script src="http://example.com"&gt;&lt;/script&gt; </code></pre> <p>Amazingly this works: The cookie <code>ASP.NET_SessionId</code> is set. However, it is an ugly solution because the script tag causes a full HTML page to be loaded, and consequences are uncertain. In Chrome the consequence is an error message visible in the console:</p> <pre><code> Uncaught SyntaxError: Unexpected token &lt; </code></pre> <p>My question:</p> <blockquote> <p>Is there a better solution to set the cookie before submitting the form?</p> </blockquote> <p>What else I have considering so far:</p> <ul> <li><p>A hidden <code>iframe</code> with <code>src="http://example.com"</code>. Disadvantages:</p> <ul> <li><p>It would be necessary to detect when the page behind <code>http://example.com</code> is loaded, and only then the form should be made visible. However, as far as I can tell, <code>iframe</code> doesn't officially (W3C) support the <code>onload</code> attribute. While that attribute nevertheless works in many browsers, I have read that it doesn't work in IE &lt;= 8. The same is true for the associated load-event.</p></li> <li><p>More than just the HTML would be loaded, i.e. CSS, images, etc. This is a waste of bandwidth, and in fact already loading the HTML is unnecessary. Only the setting of the cookie is needed.</p></li> </ul></li> <li><p>A hidden <code>img</code> with <code>src="http://example.com"</code>. Disadvantage: <code>img</code> doesn't fire the load-event for HTML content, at least in Chrome.</p></li> </ul>
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      1. POSet remote cookie with script-tag?
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    1. COyou could try and have the form post to a page on your server and then forward the data using cUrl, that does two requests, first to start the session and the second to send the actual data.. obviously, the same bandwidth is wasted, just that this time it's on your server rather than the client-side
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      1. USBogdan
    2. COBogdan, posting the form data server-side using cURL wouldn't have the same effect. The user should see the page `http://example.com/search` *in his browser*.
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      1. USfeklee
    3. COok, then the alternative would be some ajax reequest beforeSend.. otherwise, your `<script>` method is fine, i guess..
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      1. USBogdan
 

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