final int spaces = 1024 * header.readableBytes();
final ByteBuf paddedBuffer = ctx.alloc().buffer(1024 + 50);
paddedBuffer.writeBytes(header);
header.release();
for (int s = 0; s < spaces + 20; s++) {
paddedBuffer.writeByte(' ');
}
paddedBuffer.writeBytes(END_HEADER.duplicate());
ctx.write(response, promise);
ctx.writeAndFlush(new DefaultHttpContent(paddedBuffer));
}