or you can use scrapy shell :)

Em quinta-feira, 16 de outubro de 2014 11h45min05s UTC-3, lnxpgn escreveu:
>
> check your HTTP request header, especially Cookie, Refer, User-Agent 
> fields, can use wget or curl  to test first.
>
> 在 2014年10月16日,下午6:27,chun ho chui <chui.c...@gmail.com <javascript:>> 写道:
>
> I have been trying to crawl this website, built with ajax, but no luck.
>
> I knew it is ajax, so I tried to crawl it by sending an HTTP request ( 
> http://www.investing.com/economic-calendar/filter )and get the result 
> back.
>
> According to the Firebug
>
>    1. Request URL:
>    http://www.investing.com/economic-calendar/filter
>    2. Request Method:
>    POST
>    3. Status Code:
>    200 OK
>    4. 
>    
> However, it doesn't work as expected. ( * the website is updating itself 
> by post request when filter changed, and also regularly update by the 
> refresh get request)
>
> Highly appreciate with your help.
>
>
>
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