IIS C# Rewriter - iis

Question

I have just started looking at URL the Rewriter module in IIS.
The code below is what I have that works (It removes www from all the URLs to the site)
<rewrite>
<rules>
<rule name="Remove WWW" patternSyntax="Wildcard" stopProcessing="true">
<match url="*" />
<conditions>
<add input="{CACHE_URL}" pattern="*://www.*" />
</conditions>
<action type="Redirect" url="{C:1}://{C:2}" redirectType="Permanent" />
</rule>
</rules>
</rewrite>
However, we have a third party API that posts to http://www.example.com/api/controller/method that no longer works. (It is being served 405's)
The problem is (I believe) that whilst WebAPI allows www.example.com/api/controller/method to POST, it is seeing example.com/api/controller/method as a different URL and is not allowing POST.
However the followingconfig section does not work. (Note, removing the wildcard section means it does work, so I am as convinced as I can be that it is this that is causing the 3rd Party to fail). Though testing the PassAPICall in IIS in the configure rewriting section passes. Is it that I have misunderstood the intent of stopProcessing, and in fact all it does is stop processing for that rule, so it then falls throug hto the following condition?
<rules>
<clear />
<rule name="PassAPICall" stopProcessing="true">
<match url="/api/Blah/QuotationComplete" />
<conditions logicalGrouping="MatchAll" trackAllCaptures="false" />
<action type="None" />
</rule>
<rule name="Remove WWW" patternSyntax="Wildcard" stopProcessing="true">
<match url="*" />
<conditions logicalGrouping="MatchAll" trackAllCaptures="false">
<add input="{CACHE_URL}" pattern="*://www.*" />
</conditions>
<action type="Redirect" url="{C:1}://{C:2}" redirectType="Permanent" />
</rule>
</rules>

Answer 1

Was a simple syntax issue, I needed to be a little more explicit with the Rule than the IIS test tool led me to believe.
changing
<match url="/api/Blah/QuotationComplete" />
to
<match url="^api/Blah/QuotationComplete$" />
did it.