Skydrive Pro doesn't remember saved credentials (FBA) and gives "script error" on login

Question

I'm having some trouble with authentication with Skydrive Pro and an on-premises Sharepoint Foundation 2013 deployment.
Sharepoint is configured with forms-based authentication to an AD LDS instance using a 3rd party LDAP provider.
There are two issues:
1) Skydrive Pro doesn't appear to save credentials - After a while (or frequently after a reboot), Skydrive Pro will re-prompt the user for credentials. Checking the "Remember me" box appears to have no effect. The site is in IE's trusted site list
with the "Logon with current user/password" option checked. Are there any other steps I should be taking to make Skydrive Pro permanently save credentials?
I have seen a few pages about changing the "timeout" setting in a web.config file, but I'm not sure which of the many web.config files I would use. The <authentication mode="Forms"> blocks that I found while looking through didn't
have a timeout attribute set at all. I've also read something about setting the SlidingExpiration attribute, but am also unclear whether that's related or where I would go about putting it.
2) Skydrive Pro presents the normal Forms-based log-in page in a new window to the user to enter their credentials. After entering them, the window doesn't close - instead, the window tries to render the home page of the sharepoint site. It only shows the
colored top bar and a button that says "Skip Ribbon Commands." It then presents a pop-up titled "Script Error" from the browser that says:
An error has occurred in the script on this page.
Line: 150
Char: 1
Error: 'document.getElementById(...)' is null or not an object
Code: 0
URL: http://domain.com/_layouts/15/start.aspx
It asks whether to continue running scripts on the page. If the user closes the popup and the browser window, Skydrive Pro appears to work and sync as normal - but the error messages are annoying and scary to the end user.
Line 150 from the referenced start.aspx:
<a href="javascript:;" onclick="document.getElementById(&#39;startNavigation&#39;).focus();" class="ms-accessible ms-acc-button" accesskey="Y">Skip Ribbon
Commands</a>
Any way to remedy this?
Any help is appreciated.
aaron

Answer 1

Hi Aaron,
I'm having this exact same issue and was wondering if you were able to figure this out?
Thanks!