Here is how it looks:

    const protocol = InspectorProtocol.protocol;

    // Setup interception.
    await Promise.all([protocol.Runtime.enable(), protocol.Network.enable()]);
    await protocol.Network.setInterceptionEnabled({ enabled: true });

    // Get URL to override and override it.
    const { result } = await protocol.Runtime.evaluate({ expression: "document.URL" });
    const url = result.value.substring(0, result.value.lastIndexOf("/")) + "/resources/data.json";
    await protocol.Network.addInterception({ url, stage: "response" });

    // Fetch URL and intercept it.
    protocol.Runtime.evaluate({ expression: "fetch('resources/data.json').then(r => r.text())"});
    const event = await protocol.Network.onceResponseIntercepted();
    ProtocolTest.pass("Intercepted response.");

    // // Let the load continue.
    await Promise.all([
        protocol.Network.onceResponseReceived(),
        protocol.Network.interceptContinue({ requestId: event.params.requestId })
    ]);
    ProtocolTest.pass("Response received.");

    await protocol.Network.removeInterception({ url, stage: "response" });

WDYT?