解決方法：在Recording_Options下Port Mapping>Capture level設置爲 WinNet level datahtml
Capture Level的設置說明：
一、Socket level data.
Capture data using trapping on the socket level only. Port mappings apply in this case (default).
二、WinINet level data.
Capture data using hooks on the WinINet.dll API used by certain HTTP applications. The most common application that uses these hooks is Internet Explorer. Port mappings are not relevant for this level.
三、Socket level and WinINet level data.
Captures data using both mechanisms. WinINet level sends information for applications that use WinINet.dll. Socket level sends data only if it determines that it did not originate from WinINet.dll. Port mapping applies to data that did not originate from WinINet.dll.web
在錄製設置中：
當capture level爲socket level data的時候
VuGen將捕獲HTTP、SMTP、POP三、IMAP、OracleNCA和WinSocket協議
當capture level爲wininet level data的時候
VuGen將捕獲HTTP、FTP、Gopher協議app
WinInet（「Windows Internet」）API幫助程序員 使用三個常見的Internet協議，這三個協議是用於World Wide Web萬維網的超文本傳輸協議（HTTP：Hypertext Transfer Protocol）、文件傳輸協議（FTP：File Transfer Protocol）和另外一個稱爲Gopher的文件傳輸協議。WinInet函數的語法與經常使用的Win32 API函數的語法相似，這使得使用這些協議就像使用本地硬盤上的文件同樣容易。socket
參考：
http://www.loadrunnertnt.com/concepts/difference-between-wininet-and-socket-level/
http://www.loadrunnertnt.com/how-tos/quick-and-dirty-recording-techniques-for-web-httphtml/ide