http-headers

问题 Occasoinally i get this exception thrown (viewable in elmah) System.Web.HttpException: Server cannot append header after HTTP headers have been sent. System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Web.HttpException: Server cannot append header after HTTP headers have been sent. at System.Web.HttpHeaderCollection.SetHeader(String name, String value, Boolean replace) at System.Web.HttpHeaderCollection.Add(String name, String

问题 Can I 'noindex, follow' a specific page using x robots in .htaccess? I've found some instructions for noindexing types of files, but I can't find instruction to noindex a single page, and what I have tried so far hasn't worked. This is the page I'm looking to noindex: http://www.examplesite.com.au/index.php?route=news/headlines This is what I have tried so far: <FilesMatch "/index.php?route=news/headlines$"> Header set X-Robots-Tag "noindex, follow" </FilesMatch> Thanks for your time. 回答1: It

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Headers already sent by PHP Hello there when i go to the site it says Warning: session_register() [function.session-register]: Cannot send session cache limiter - headers already sent (output started at /home/content/49/5712349/html/c/admin/admin.php:17) in /home/content/49/5712349/html/c/admin/admin.php on line 39 Warning: Cannot modify header information - headers already sent by (output started at /home

问题 I read this question but it didn't answer my question. To me Headers and Parameters are both dictionaries with the difference that headers is [String : String] while Parameters is [String : AnyObject]? and so if your parameters are also Strings then you could send them within the headers (while using a 'x-' prefix to signify they aren't standard headers) which is a common but not good practice. Is that correct? Are there other difference between headers and parameters ? What kind of other non

问题 I want to add a header ( Cache-control ) in nginx only if it is not set. I need to increase cache time in some case via the header in nginx. 回答1: You can use map to populate a variable $cachecontrol . If $http_cache_control (the header from the client) is empty, set a custom value. Otherwise (default) reuse the value from the client. map $http_cache_control $cachecontrol { default $http_cache_control; "" "public, max-age=31536000"; } Afterwards you can use that variable to send the upstream

问题 I am trying to use a webfont which I am legally permitted to use, but not to distribute. I am hosting the font files on a separate domain used for static content. The two domains are unrelated (one is not a subdomain of the other). Let’s say that the site using the webfont is example.com and the site hosting it is example.net . I tried this in the .htaccess file on example.net <FilesMatch "\.(ttf|otf|eot|woff|svg)$"> <IfModule mod_headers.c> Header set Access-Control-Allow-Origin "example.com

问题 I'm trying to use Meteor's (v1.0) HTTP.call method to communicate with a Python-based server which accepts only application/json content type in header but I cannot set the HTTP header properly in Meteor when calling the API URL from a client side. With a snippet like this, I get a 415 (Unsupported Media Type) error from Python server: if (Meteor.isClient) { Template.testing.events({ 'click button': function(event, tpl) { event.preventDefault(); var method = 'GET'; var url = 'http://localhost

问题 (I am asking this question (and answering it), to make accessible some (hopefully useful) information, since I could not find this readily using search engines. However, feel free to answer it and add useful information :-).) How can HTTP headers be escaped/quoted in Python? And/Or how can they be validated to make sure they do not contain any context-escaping values? In other words, how can we do for HTTP headers, what cgi.escape and urllib.quote methods (and sanitizing) do for HTML and URLs

问题 I am confused by how the W/ appears in the etag when I have not added it. I am using Node.js http server module and have a Nginx as reverse proxy. I am getting the browser see the Etag generated by the Node.js server but with a W/ tagged to it. Can someone explain where that W/ comes from? Does the browser insert that based upon its determination that it is a weak etag? I want the browser to get it as I sent it. Without the W/ prefix. Here is the Etag header as seen in the browser. etag: W/

问题 Now I'm working to do twitter client with Javascript. After I read this topic, I have question Modify HTTP Headers for a JSONP request He told impossible way to modify HTTP Header when using JSONP. If it's true. How does twitter extension work in Chrome ? I think Chrome extension use Javascript, too. 回答1: Extensions have more privileges then "normal" JavaScript code executing within a page. Check here: http://code.google.com/chrome/extensions/xhr.html 来源： https://stackoverflow.com/questions