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{!$API.session_ID} w/ AJAX Toolkit gets Invalid Session Error
I thought this error was a thing of the past when Salesforce put out a fix for resolving Visualforce session Ids several years ago but it's apparently hard to kill. Here are the facts:
The error is happening when using the session Id from the global API variable with the AJAX toolkit (see code below)
The Visualforce Page in question is part of a managed package
The customer hitting the error is doing so in a sandbox, Unlimited Edition
This app is working correctly for hundreds of other customers without a problem
The "lock session to originating IP" setting is turned OFF
Viewing Source on page confirms that a session Id is being populated on this line of the JS
For whatever reason this customer is getting "Invalid Session Id". I could begin the "shots in the dark" and try going back to old school tactics like getting the session Id from the Apex controller instead of a merge field... but why is it working for all other customers and not this one? Also, I don't want to do too much trial and error because its a huge PITA to uninstall in their sandbox, reupload a beta package, an reinstall for every little thing I want to try and test.
Any ideas?
<script src="../../soap/ajax/24.0/connection.js" type="text/javascript"></script> <script type="text/javascript"> sforce.connection.sessionId = '{!$Api.Session_ID}'; </script>
I still have no idea what the actual issue was, or where the erroneous session Id was coming from (or why it was invalid)... but I did stumble upon a fix:
There was a sidebar component from another app that, when removed, allowed my app to work. Anyone else run into apps conflicting? Perhaps both trying to load the AJAX toolkit?