1303-Pass_hardcoded_value_when_externalCacheDir_return_null
Description
sometimes externalCacheDir returns null/empty. In that case, we used
to pass an empty string. but we need externalCacheDir to let
downloadManager to download & save files. downloadManager doesn't have
access to cacheDir, so can't save files in it.
In this case, we pass a hardcoded externalCacheDir path value.