Chrome (MacOS) lands on the web page for the app (so Company Page >> Itunes Web landing page), and it automatically opens iTunes (via the itmss:// schema), so if it wasn't properly handled, you'd see the equivalent error as the OP posted - regardless, he must be either autoloading or clicking the app link (from the Itunes page), since the URL in the browser is showing itmss://<some_long_url), which is ultimately the issue.
I mean, I get what you're saying, you can go the app advice page:
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Then clicking the $4.99 in the App Store button/link gets you to the iTunes page which should also load in a browser (since it's HTTP):
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... and then clicking the 'View in iTunes' will open iTunes ... however, depending on the configuration details, it might also automatically open iTunes (which is what happens on my machine, using Chrome and Firefox)
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