express - 头盔阻挡引导

Question

起初，引导程序没有加载，所以我放了这个：

app.use(helmet());
app.use(
helmet.contentSecurityPolicy({
    directives: {
        defaultSrc: ["'self'"],
        scriptSrc: ["'self'", "https://cdn.jsdelivr.net"],
        objectSrc: ["'none'"],
        styleSrc: ["'self'", "https://cdn.jsdelivr.net"],
        fontSrc: ["https://fonts.gstatic.com"],
        upgradeInsecureRequests: [],
    },
})
);

Then this bug comes in: "Refused to load the font 'data:font/truetype;charset=utf-8;base64,AAEAAAAQAQAABAAARkZUTX2Nv5YAAjnoAAAAHEdERUYENABTAAHJmAAAACRHUE9T4BjvnAACObAAAAA2R1NVQgmn+v0AAcm8AABv9E9TLzIKcyJjAAABiAAAAGBjbWFwv7oVNQAACfQAAAYWY3Z0IAARAUQAABAMAAAABGdhc3D//wADAAHJkAAAAAhnbHlmCJ88vQAAGBgAAYfUaGVhZAkc3WMAAAEMAAAANmhoZWEEAQIFAAABRAAAACRobXR4diRu0wAAAegAAAgMbG9jYdlVdhQAABAQAAAIBm1heHAEXADhAAABaAAAACBuYW1ludepWgABn+wAAAKdcG9zdBJ+3qAAAaKMAAAnBAABAAAAAQPX5ykXUl8PPPUAHwIAAAAAANP0zEUAAAAA0/TMSAAA//4CAAIEAAAACAACAAAAAAAAAAEAAAIAAAAAAAIAAAAAAAIAAAEAAAAAAAAAAAA...4AIAAgABIAIQIoAAgADwANACAAIgAbABsAJgL2AAgAFQAOACEAIAAVABwAIQIlAAcADwANAA4AIgAhABwA2gAHABIAEgAYABIAGwARAQIABwAWABEAFAASACEAIAAqAAcADgAfABsAFgAbABQBkwAFAA4AIQAQABUDqwAEABwAHwAYAtEABAAWABMAFgBdAAMAEgAPAtAAAgAQAAEABAOsABQAHAAiACEAIgAPABIADQAgABIADgAfABAAFQASABEADQATABwAHwADAAgAIgA0AnMADAAcABwAGgANABwAIgAhAA0AGgAOAB0DsgAIABwAHAAaAA0AHAAiACEDsQAHABwAHAAaAA0AFgAbAAIABAAGAAcAAAAOABYAAgAYACQACwAmACcAGAABAAAACgAeADQAAWxhdG4ACAAEAAAAAP//AAEAAAABc2l6ZQAIAAQAAACgAAAAAAAAAAAAAAAAAAAAAQAAAADVpCcIAAAAANP0zEUAAAAA0/TMSA=='"

我该如何解决？