DELETE请求在Insomnia/Postman正常，前端调用报错求助

DELETE请求在Insomnia/Postman中可正常返回204响应码，但前端发起该请求时出现报错。以下是相关代码及信息：

服务端Service代码（C#） #

public bool Dissociate(string envCode, string serialNumber, string gatewayType)
{
    envCode.ThrowIfNull();
    serialNumber.ThrowIfNull();
    gatewayType.ThrowIfNull();

    if (!IsAssociated(envCode, serialNumber, gatewayType))
    {
        _logService.Warn($"DspService - Dissociate - {gatewayType} {serialNumber} not associated to DSP tenant on environment {envCode}");
        return false;
    }

    EnvironmentSettings dspEnvSettings = GetEnvironmentSettings(envCode);
    string baseUri = DspHelper.GetBaseUriByAction(dspEnvSettings, DspActionType.Dissociate);
    string dspDeviceId = DspHelper.BuildDeviceId(serialNumber, gatewayType, true);

    string uri = $"{baseUri}/registry/devices/{dspDeviceId}/claim";
    var body = new
    {
        Claimable = true
    };
    try
    {
        var authToken = GetAuthorizationHeader(dspEnvSettings, DspActionType.Dissociate);
        RunDspCommand<bool>(dspEnvSettings, uri, authToken, body, HttpMethod.Put, DspActionType.Dissociate);
        return true;
    }
    catch (Exception e)
    {
        _logService.ErrorException(e, $"DspService - Dissociate - Error dissociating {gatewayType} {serialNumber} on environment {envCode}. {uri}");
        throw;
    }
}

Insomnia响应说明 #

• 请求返回状态码：204 No Content
• 请求参数及响应详情符合预期，请求成功完成

服务端Controller代码（C#） #

[AcceptVerbs("DELETE")]
[Route("dissociate")]
public bool Dissociate([FromUri] string gatewayType, [FromUri] string gatewaySerial)
{
    if (string.IsNullOrEmpty(gatewaySerial) || string.IsNullOrEmpty(gatewayType))
    {
        this.BadRequestResponse();
    }

    var connectedUser = this.permissionService.GetConnectedUser();
    this.permissionService.CheckRolePermission(connectedUser.Role, PermissionConstant.DissociateComX);

    bool hasSucceeded = this.dspService.Dissociate(connectedUser.CurrentEnvironment, gatewaySerial, gatewayType);
    if (hasSucceeded)
    {
        this.applicationDataAccess.LogAction(connectedUser.CurrentEnvironment, connectedUser.Email, LogActionConstants.Action.DissociateComX, string.Format(LogActionConstants.Message.DissociateComX, gatewayType, gatewaySerial));
    }
    else
    {
        this.BadRequestResponse("cannot deprovioned comx");
    }

    return hasSucceeded;
}

异常位置 #

异常出现在Service代码的以下行：

RunDspCommand<bool>(dspEnvSettings, uri, authToken, body, HttpMethod.Put, DspActionType.Dissociate);

前端代码 #

controller.ts #

dissociateGateway() {
    if (!this.isDspGateway || this.isLoadingDspState || this.isDissociating
        || this.gateway.FirmwareUpgradeWorkflow || this.gateway.DeleteGatewayWorkflow
        || !this.isAssociated()) {
        return;
    }

    this.modalService.confirm(
        `The ${this.gateway.Type} ${this.gateway.SerialNumber} will be dissociated from its DSP tenant ${this
            .dspGatewayState.Tenant}.`,
        'Are you sure you want to dissociate the gateway from DSP tenant?')
        .then(() => {
            this.isDissociating = true;
            this.dspService.dissociate(this.gateway.Type, this.getDeviceId())
                .then(() => this.getDspGatewayState())
                .catch((e) => {
                    if (e) {
                        this.modalService.error('Error dissociating the gateway. Please retry later');
                    }
                })
                .finally(() => this.isDissociating = false);
        });
}

service.ts #

dissociate(gatewayType: string, gatewaySerial: string): ng.IPromise<boolean> {
    var uri = this.ROUTES.dissociate
        .replace('{:gatewayType}', gatewayType.toString())
        .replace('{:gatewaySerial}', gatewaySerial);

    return this.restService
        .delete(uri, null)
        .then((response: any) => {
            return response;
        })
        .catch((response: any) => {
            return this.$q.reject(response);
        });
}

路径配置 #

dissociate: '/dsp/dissociate?gatewaytype={:gatewayType}&gatewaySerial={:gatewaySerial}',

需要更多信息请告知，恳请协助解决该问题。

内容的提问来源于stack exchange，提问作者Philip