• Reads the FDv1 fallback directive from response headers. Returns { fdv1Fallback: false } when x-ld-fd-fallback is absent or not "true".

    Parameters

    • headers: {
          get(name) => null | string;
      }

      Header accessor. The get method must accept header names in any casing; callers normalize to lowercase before calling this function.

      • get:function
        • Parameters

          • name: string

          Returns null | string

    Returns FallbackDirective

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