Rewrite IIS Url's Except App Root - regex

Question

I hate Regex's and it hates me, here is the problem:
I am dealing with the infamous Angular routing and legacy browsers (IE9+), I have solved all issues but one, which is that in IE the root url for the app requires a forward slash (and only the root). At the same time I need to remove all forward slashes from other non root requests as demonstrated here in this borrowed snippet:
<rule name="Remove trailing slash" stopProcessing="true">
<match url="(.*)/$" />
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
</conditions>
<action type="Redirect" redirectType="Permanent" url="{R:1}" />
</rule>
This works perfectly, I just do not know how to get a request for exactly this: http://localhost/jumpstart
Rewritten as: http://localhost/jumpstart/ with the trailing slash, while preserving the other rule for non app roots requests.
I thought a match of *\/jumpstart(?!\/) would suffice, but it fails to work.
Any help would be appreciated.
Thanks!

Answer 1

You should be able to use something such as:
<rule name="Add trailing slash to jumpstart" stopProcessing="true">
<match url="(.*[^/])$" />
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
<add input="{REQUEST_FILENAME}" pattern="(.*?)jumpstart$" negate="true" />
</conditions>
<action type="Redirect" redirectType="Permanent" url="{R:1}/" />
</rule>