<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
A google search noted that the prolog is optional. I found this:</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<a href="https://www.w3schools.com/xml/xml_syntax.asp" id="LPlnk">https://www.w3schools.com/xml/xml_syntax.asp</a><br>
</div>
<div class="_Entity _EType_OWALinkPreview _EId_OWALinkPreview _EReadonly_1"></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
"The XML prolog is optional. If it exists, it must come first in the document."</div>
<div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div id="Signature">
<div>
<div></div>
<div id="divtagdefaultwrapper" style="font-size:12pt; color:#000000; background-color:#FFFFFF; font-family:Calibri,Arial,Helvetica,sans-serif">
<div style="font-family:Tahoma; font-size:13px">---
<div><span id="ms-rterangepaste-start"></span><span style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">Roberto Ullfig - rullfig@uic.edu</span><br style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">
<span style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">Systems Administrator</span><br style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">
<span style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">Enterprise Applications & Services | Technology Solutions</span><br style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">
<span style="font-family:arial,helvetica,sans-serif; font-size:13px; line-height:16.003px">University of Illinois - Chicago</span>
<div><span id="ms-rterangepaste-end"></span></div>
</div>
</div>
</div>
</div>
</div>
</div>
<div id="appendonsend"></div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> users <users-bounces@shibboleth.net> on behalf of Ian Young <ian@iay.org.uk><br>
<b>Sent:</b> Monday, May 24, 2021 2:31 PM<br>
<b>To:</b> Shib Users <users@shibboleth.net><br>
<b>Subject:</b> Re: xmlsectool and prolog</font>
<div> </div>
</div>
<div class="" style="word-wrap:break-word; line-break:after-white-space"><br class="">
<div><br class="">
<blockquote type="cite" class="">
<div class="">On 2021-05-24, at 18:20, Ullfig, Roberto Alfredo <<a href="mailto:rullfig@uic.edu" class="">rullfig@uic.edu</a>> wrote:</div>
<br class="x_Apple-interchange-newline">
<div class=""><span class="" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; float:none; display:inline!important">I've
found several non-federated applications (I don't recall which ones though) which require metadata to be uploaded manually will fail to upload or configure properly if the metadata contains an XML prolog. I've not seen such a problem if the prolog is not there.</span></div>
</blockquote>
<div><br class="">
</div>
<div>That's very curious. Being able to process the prolog is, of course, a mandatory part of the XML specification, so you might suspect that any application that's genuinely having trouble understanding it may have problems elsewhere...</div>
<div><br class="">
</div>
<br class="">
<blockquote type="cite" class="">
<div class=""><span class="" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; background-color:rgb(255,255,255); display:inline!important">For
now, I just made a note for application technicians that the prolog may need to be removed manually from the file before uploading.</span></div>
</blockquote>
</div>
<div class=""><br class="">
</div>
Makes sense.<br class="">
<div class=""><span class="x_Apple-style-span" style="border-collapse:separate; color:rgb(0,0,0); font-family:Helvetica; font-style:normal; font-variant:normal; font-weight:normal; letter-spacing:normal; line-height:normal; orphans:2; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; border-spacing:0px">
<div class="" style="word-wrap:break-word"><span class="x_Apple-style-span" style="border-collapse:separate; color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-variant:normal; font-weight:normal; letter-spacing:normal; line-height:normal; orphans:2; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; border-spacing:0px">
<div class=""><span class="x_Apple-tab-span" style="white-space:pre"><br class="x_Apple-interchange-newline">
</span> -- Ian<br class="">
</div>
<div class=""><span class="x_Apple-style-span" style="font-size:medium"><br class="">
</span></div>
</span></div>
</span><br class="x_Apple-interchange-newline">
<br class="x_Apple-interchange-newline">
</div>
<br class="">
</div>
</body>
</html>