So I have built out a custom VFP that we are using for our Community. Now, when I 'decrease' the browser to a mobile size, it resizes and goes into our Mobile-friendly mode. However, when I open it on my phone it is NOT doing that Mobile-friendly responsiveness. Is this an issue that others have come across, is this community related? Or is there something I'm missing?
I don't know of any issues with responsive design with Visualforce in Communities. There are a number of developerforce articles and blogs that provide guidance on how to design a page to support different frameworks. Here are two:
Some things in particular you could check would be:
Have you set the viewport metatag in the
<meta name="viewport” content="width=device-width, initial-scale=1.0”></meta>
Have you set the doctype to html5 and removed the various salesforce added styles in the
<apex:page showheader="false" sidebar="false" standardstylesheets="false" doctype="html-5.0">