I'm trying to open custom url scheme iOS app from Salesforce1 app. Previously it was opening fine but since v7.3.1 release i cannot open external app anymore.
Instead of opening app it opens Salesforce1 page with error text:
you can't view this page, either because you don't have permission or because the page isn't supported on mobile devices.
Tried this solution: https://salesforce.stackexchange.com/a/30368/24640
Prevous version of salesforce was working fine when using:
window.top.location = 'myapp://'
iframe.src = 'myapp://'
At the moment I'm not sure than if this is bug or salesforce changed something.