Documentation - v7.8.0
    Preparing search index...

    When strict: false, a value that fails validation falls back to the field's default instead of aborting the whole configuration. Defaults to true (abort). Use this for backward-compatible relaxation of validation on a field.

    interface Strict {
        strict?: false;
    }
    Index
    strict?: false

    When false, an invalid value falls back to the default instead of aborting. Defaults to true.