[Zope] Invalid Header (0) error
Does anyone know what an Error Type: Value Error, Error Value:Invalid Header (0) error represents ? It's interesting in the way it shows itself up. I added a dtml-var a_dtml_method to a dtml method and it generates this error. This dtml-var a_dtml_method is nested inside a dtml-if and would definitely not be rendered the first time the 'calling' dtml-method is rendered. I took out the dtml-var a_dtml_method and I still got the same error. I put a dtml-var REQUEST as the first line of the 'calling' method and everything then renders correctly with no error. Even the dtml-var a_dtml_method renders correctly when it should do so. Any ideas, suggestions ? I'm running Zope 2.1.6 on RedHat Linux Thanks Richard Richard Moon [EMAIL PROTECTED] ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
[Zope] R: [Zope] Invalid Header (0) error
Does anyone know what an Error Type: Value Error, Error Value:Invalid Header (0) error represents ? It's interesting in the way it shows itself up. I added a dtml-var a_dtml_method to a dtml method and it generates this error. This dtml-var a_dtml_method is nested inside a dtml-if and would definitely not be rendered the first time the 'calling' dtml-method is rendered. I took out the dtml-var a_dtml_method and I still got the same error. I put a dtml-var REQUEST as the first line of the 'calling' method and everything then renders correctly with no error. Even the dtml-var a_dtml_method renders correctly when it should do so. Any ideas, suggestions ? This is very strange. I had have the some problem. I have seen that if the Zope generate a lot of empty lines at the begining I receive this error. the idea is to dont have too many empty lines at the begining of the output, (I have no idea how many) try to write something at the begining of the output doc. I use someting like "Content-type:" PM PS: My English is not so good, maybe you dont understood what I want to say ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] R: [Zope] Invalid Header (0) error
Marcel, you're English is fine (better than my Italian). I think you are near to the answer. My dtml method 'dtml_main' has this kind of logic dtml-if something dtml-var a_dtml_method dtml-else dtml-var another_dtml_method /dtml-if I had standard_html_header (which has an html header) in each of the 'inner' methods, but not in the 'dtml_main' method. So I took standard_html_header out of 'a_dtml_method' and 'another_dtml_method' and put it in the 'dtml_main' method. No Invalid Header problems now. I don't know why that should make a difference but it seems to. Thanks for your help Richard I found that the main dtml-method had no standard-header (so no html header) but the methods which it was rendering At 15:01 23/06/00 +0200, you wrote: Does anyone know what an Error Type: Value Error, Error Value:Invalid Header (0) error represents ? It's interesting in the way it shows itself up. I added a dtml-var a_dtml_method to a dtml method and it generates this error. This dtml-var a_dtml_method is nested inside a dtml-if and would definitely not be rendered the first time the 'calling' dtml-method is rendered. I took out the dtml-var a_dtml_method and I still got the same error. I put a dtml-var REQUEST as the first line of the 'calling' method and everything then renders correctly with no error. Even the dtml-var a_dtml_method renders correctly when it should do so. Any ideas, suggestions ? This is very strange. I had have the some problem. I have seen that if the Zope generate a lot of empty lines at the begining I receive this error. the idea is to dont have too many empty lines at the begining of the output, (I have no idea how many) try to write something at the begining of the output doc. I use someting like "Content-type:" PM PS: My English is not so good, maybe you dont understood what I want to say ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev ) Richard Moon [EMAIL PROTECTED] ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
[Zope] Re: Fwd: Re: [Zope] R: [Zope] Invalid Header (0) error
We've had the same problem, Michael Pelletier addressed this question in a previous post, Check out: http://www.egroups.com/message/zope/29589?start=29498 To summarize, 'Zope doesn't like it if there is no html tags before the DTML begins.' To fix our problem, we simply make sure that a html comment as the first line in every page, through the standard_html_header. Hope this helps, Mark --- [EMAIL PROTECTED] www.kaivo.com --- In [EMAIL PROTECTED], Richard Moon [EMAIL PROTECTED] wrote: Marcel, you're English is fine (better than my Italian). I think you are near to the answer. My dtml method 'dtml_main' has this kind of logic dtml-if something dtml-var a_dtml_method dtml-else dtml-var another_dtml_method /dtml-if I had standard_html_header (which has an html header) in each of the 'inner' methods, but not in the 'dtml_main' method. So I took standard_html_header out of 'a_dtml_method' and 'another_dtml_method' and put it in the 'dtml_main' method. No Invalid Header problems now. I don't know why that should make a difference but it seems to. Thanks for your help Richard I found that the main dtml-method had no standard-header (so no html header) but the methods which it was rendering At 15:01 23/06/00 +0200, you wrote: Does anyone know what an Error Type: Value Error, Error Value:Invalid Header (0) error represents ? It's interesting in the way it shows itself up. I added a dtml-var a_dtml_method to a dtml method and it generates this error. This dtml-var a_dtml_method is nested inside a dtml-if and would definitely not be rendered the first time the 'calling' dtml-method is rendered. I took out the dtml-var a_dtml_method and I still got the same error. I put a dtml-var REQUEST as the first line of the 'calling' method and everything then renders correctly with no error. Even the dtml-var a_dtml_method renders correctly when it should do so. Any ideas, suggestions ? This is very strange. I had have the some problem. I have seen that if the Zope generate a lot of empty lines at the begining I receive this error. the idea is to dont have too many empty lines at the begining of the output, (I have no idea how many) try to write something at the begining of the output doc. I use someting like "Content-type:" PM PS: My English is not so good, maybe you dont understood what I want to say ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev ) Richard Moon [EMAIL PROTECTED] ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev ) --- End forwarded message --- ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] R: [Zope] Invalid Header (0) error
Richard Moon writes: I think you are near to the answer. ... sevaral blank lines at start of rendered page ... Zope wants to add a BASENAME URL in the HTML HEAD. Therefore, it looks for an HTML header. Obviously, it gives up with "Invalid Header", when is can not find it near the very start of the page. The relevant code is probably in "ZPublisher.HTTPResponse", maybe "ZPublisher.HTTPRequest". Dieter ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
