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I forgot to mention that you also need to ensure the SP's running use a shared session store. Otherwise, the user would show up with a cookie just fine, but the lookup for the corresponding session would fail.
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<div class="">You have several options for doing that. This might help.</div>
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<div class=""><a href="https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPClustering" class="">https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPClustering</a></div>
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<div class="">A lot of the warning verbiage here refers to a coherent application with a defined session management mechanism. In that case, you would almost always want to rely on the application's sessions.</div>
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<div class="">But, here, you have two different applications, and making the applications figure out how to share sessions is probably the more painful route by an order of magnitude.<br class="">
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<div class="">On Nov 23, 2016, at 9:15 PM, Klingenstein, Nate <<a href="mailto:nklingenstein@calstate.edu" class="">nklingenstein@calstate.edu</a>> wrote:</div>
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<div class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">And
you make the cookie in a sub-domain(or domain) that both can see, yes.</span></div>
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