[7.x] Show error page when accessing unavailable app (#54656)#55317

Merged

pgayvallet merged 1 commit intoelastic:7.xfrom pgayvallet:backport/7.x/pr-54656

Jan 20, 2020

+292-112

Commits on Jan 20, 2020

Show error page when accessing unavailable app (elastic#54656 )
pgayvallet
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