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-rw-r--r--src/web/app/common/scripts/is-promise.ts1
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diff --git a/src/web/app/common/scripts/is-promise.ts b/src/web/app/common/scripts/is-promise.ts
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index 0000000000..3b4cd70b49
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+++ b/src/web/app/common/scripts/is-promise.ts
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+export default x => typeof x.then == 'function';