Apache 2.4部署Angular应用分片上传仅首个请求成功问题排查

我在Apache HTTPD 2.4上部署了一个Angular应用，目前正在开发分片上传功能，可在用户使用应用的过程中后台发送文件分片。
该功能在本地使用ng serve运行时完全正常，但部署到Linux的httpd环境后，仅第一个分片请求能正常发送，后续请求就停止处理，所有网络请求返回的状态码均为200。

相关代码 #

接收大文件分片数组的异步方法 #

async postLargePart(data: any, update_query: any): Promise<any> {
  // Variables
  const proj_id = data[0].filter.id;
    
  // Run update for everything but the large file first
  await this.query.post(this.createFormData(update_query)).toPromise();

  // post the big file in chunks
    for (const dataIdx in data) {
      if (data.hasOwnProperty(dataIdx)) {
        try {
          // get all the current files to append to each big query
          // Need to do this here so that if multiple large files are
          // in the array, it will append the last large file to the next
          const result = await this.query.post({
            action: 'SELECT',
            values: [
              'id'
            ]
          }).toPromise();
          // loop through other files that were posted and append them to the query
          data[dataIdx]['object']['file_set'].push(...result);

          return await this.query.post(this.createFormData(data[dataIdx])).toPromise();
        } catch {
          console.log('Error');
          return null;
        }
      }
    }

方法调用代码 #

...
// Split out large and small queries
return from(this.splitLargeFiles(obj, id).then(result => {

  // store the objects
  const large_file_queries = result.large_file_queries;
  const obj2 = result.obj;

  // Create the query for the smaller files/no files
  const update_query = {
    'action': 'UPDATE',
    'object': (this.serializeDQE(obj2)),
    'filter': {
      'id': id
    }
  };

  // Post the large data
  return from(this.postLargePart(large_file_queries, update_query));
}));
}

现有排查信息 #

暂未定位到是Angular还是Apache导致的异常，当前使用的Apache已安装MPM模块，仅使用基础配置。

内容的提问来源于stack exchange，提问作者Neumsy