...after building it via PhoneGap Build
Your directory structure is not what PGB expects.
Instead: move your config.xml into /www, adjust the paths to icons/splashes and send only the contents of /www to PGB.
You are using compound qualifiers in the density attribute, which will not work. Use the qualifier attribute. See the PGB Docs, Icons and Splash section.
density="land-ldpi" should be qualifier="land-ldpi"
You are missing the whitelist plugin, and the allow-navigation rule for the map tiles.
The whitelist plugin worked! Thanks!
PhoneGap Build doesn't seem to mind the directory structure of my repository, after all, it is building it. And now, with the whitelist plugin, it works.
As for the density="land-ldpi" attribute, that came unmodified from the Hello World template (as did the directory structure) and I plan to drop it anyway. You might want to do a pull request on that template.
As for the density="land-ldpi" attribute, that came unmodified from the Hello World template...
There are many, many templates online. Old ones, new ones, copied ones, modified ones....and Phonegap provides several, of which some a wrong. Yes, it's a mess. That's why the suggestion to use the proper 'qualifier' attribute has been documented in the PGB Docs ( Icons and Splash | PhoneGap Docs ) and has been repeated here at the forum over and over again (use Search function).