writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidTagDirective), r.URL)
		return
	}

	// Validate storage class metadata if present
	dstSc := r.Header.Get(xhttp.AmzStorageClass)
	if dstSc != "" && !storageclass.IsValid(dstSc) {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidStorageClass), r.URL)
		return
	}

	// Check if bucket encryption is enabled

				"text/x-python",
				"text/x-rst",
				"text/x-rexx",
				"text/x-ruby",
				"text/x-scala",
				"text/x-scheme",
				"text/x-sed",
				"text/x-sql",
				"text/x-setext",
				"text/x-stsrc",
				"text/x-tcl",
				"text/x-uuencode",
				"text/x-vbasic",
				"text/x-vbdotnet",
				"text/x-vbscript",
				"text/x-vcalendar",
				"text/x-vcard",
				"text/x-verilog",

    <sub-class-of type="text/plain"/>
  </mime-type>

  <mime-type type="text/x-setext">
    <glob pattern="*.etx"/>
    <sub-class-of type="text/plain"/>
  </mime-type>

  <mime-type type="text/x-stsrc">
    <_comment>Smalltalk source code</_comment>
    <glob pattern="*.st"/>
    <sub-class-of type="text/plain"/>
  </mime-type>

  <mime-type type="text/x-tcl">
    <alias type="application/x-tcl"/>