[FSSDK-11101] refactor handling of no config availability #1000

Job	Run time
crossbrowser_and_umd_unit_tests	6h 0m 12s
unit_tests (16)	1m 48s
unit_tests (18)	1m 29s
unit_tests (20)	1m 26s
unit_tests (22)	1m 34s
lint	57s
fullstack_production_suite / test	5s
integration_tests / test	5s
lint_markdown_files / lint	52s
Coveralls coverage	4s
	6h 8m 32s

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