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Subject: Re: Tomcat strips CRLFs from the generated page
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From: Asok Chattopadhyay <da.asok@gmail.com>
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Date: Mon, 13 Jan 2014 21:57:04 +0800
To: Tomcat Users List <users@tomcat.apache.org>
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No, I don't have any filter, except for a session counter listener. I am goi=
ng to make a demo servlet and post it soon once I am back at home,

Thanks Dan. I really appreciate your help,

Sent from my iPhone

On 13 Jan, 2014, at 9:36 PM, Daniel Mikusa <dmikusa@gopivotal.com> wrote:

> On Jan 13, 2014, at 8:26 AM, Asok Chattopadhyay <da.asok@gmail.com> wrote:=

>=20
>> I checked the string, say, s, just before and after writing it to the Pri=
ntWriter.
>>=20
>> PrintWriter out=3Dresponse.getWriter();
>> Print("before=3D"+s);
>> out.println(s);
>> out.flush();
>> out.close();
>> Print("after=3D"+s);
>>=20
>> where Print is a static method printing on the log file localhost...log
>>=20
>> And the log shows no change. Obviously it looks like whatever is happenin=
g is happening in out.println.
>=20
> No, not necessarily.  It is quite possible for a servlet Filter to modify w=
hat you're writing to the output stream.  Does your application have any fil=
ters in place?
>=20
> Also, can you provide a demo servlet that replicates this behavior?
>=20
> Thanks
>=20
> Dan
>=20
>>=20
>>=20
>>=20
>> Sent from my iPhone
>>=20
>> On 13 Jan, 2014, at 8:48 PM, Daniel Mikusa <dmikusa@gopivotal.com> wrote:=

>>=20
>>> On Jan 13, 2014, at 6:09 AM, Asok Chattopadhyay <da.asok@gmail.com> wrot=
e:
>>>=20
>>>> Hi,
>>>>=20
>>>> My servlet generates a page containing embedded JavaScript and sometime=
s
>>>> the page received in the browser comes with CRLFs stripped from the tex=
t,
>>>> starting at some point in the text. This creates a big problem if the
>>>> script contains CRLF as statement separator instead of semi-colon. It's=

>>>> strange that not the entire text is stripped. Say, the first 150 lines
>>>> comes as it is, whereas starting from line 151, all the CRLFs are strip=
ped.
>>>> It is fairly consistent for the same page.
>>>=20
>>> Sounds like an application / servlet error.  Have you tried hooking up a=
 debugger and stepping through your code?
>>>=20
>>> Also, do you see this consistently across all servlets in your app or ju=
st one?
>>>=20
>>>>=20
>>>> I am using Tomcat 6.0.37.
>>>>=20
>>>> Why does it happen? Is anything in the text triggers this? Is there a w=
ay
>>>> to overcome this problem, as I don't have control over the actual conte=
nt?
>>>=20
>>> Seems unlikely that Tomcat would be doing this.  Check your servlet code=
.  Check if you have any filters in your application, perhaps one is modifyi=
ng the content.
>>>=20
>>> Dan
>>>=20
>>>>=20
>>>>=20
>>>> Thanks in advance.
>>>>=20
>>>> Here is the example.
>>>>=20
>>>>=20
>>>> LINE 148:    <script type=3D"text/javascript"
>>>> SRC=3D"html/scripts/combotext.js"></script>
>>>>=20
>>>> LINE 149:    <script type=3D"text/javascript"
>>>> SRC=3D"html/scripts/datepicker.js"></script>
>>>>=20
>>>> LINE 150:    <script type=3D"text/javascript"
>>>> SRC=3D"html/scripts/combo.js"></script>
>>>>=20
>>>> LINE 151:    <script type=3D"text/javascript"
>>>> SRC=3D"html/scripts/calc.js"></script>    <script type=3D"text/javascri=
pt"
>>>> SRC=3D"html/scripts/dream.js"></script><script language=3D"javascript"
>>>> type=3D"text/javascript">var buttonfunction
>>>> clicked(b){button=3Db.value}function submitit(form){if
>>>> (button=3D=3D"Details"){form.page.value =3D "opcdt"form.searchbutton.va=
lue =3D
>>>> "Top"}}function pickProduct(link, cus){if
>>>> (navigator.appName.indexOf("Netscape") >=3D
>>>> 0){document.one.xinvnum.value=3Dlink.textdocument.one.xcus.value=3Dcus.=
text}else{document.one.xinvnum.value=3Dlink.innerTextdocument.one.xcus.value=
=3Dcus.innerText}return
>>>> false}</script></head><body
>>>> onload=3D"topBottom();move_caret('one','xcrnnum');"
>>>> style=3D"margin:0;padding:0;"><!--<div id=3D"darkBackgroundLayer"
>>>> class=3D"darkenBackground"> ...
>>>=20
>>>=20
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>=20
>=20
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