When I send a 304 response. How will the browser interpret other headers which I send together with the 304? E.g. header("HTTP/1.1 304 Not Modified"); header("Expires: " . gmdate("D, d M Y H:i:s", time() + $offset) . " GMT"); Will this make sure the browser will not send another conditional GET request (nor any request) until $offset...
I enabled mod_deflate on Apache 2 on an Ubuntu machine and noticed that my browser doesn't cache the compressed file types on page refreshes. I used firebug's net settings to check this and verified on another computer. Under mod_deflate if I compress css and js files, the browser makes a request each time. If I turn off mod_deflate, t...
When a web server responds to HttpWebRequest.GetResponse() with HTTP 304 (Not Modified), GetResponse() thows a WebException, which is so very weird to me. Is this by design or am I missing something obvious here? ...
How can I tell browser that use the cache and do not revalidate (HTTP Status 304) within the expire time or close the browser ? (just an opposite the must-revalidate ^^") ASP.NET ...
I'm using the Google "Page Speed" plug-in for Firefox to access my web site. Some of the components on my page is indicated as HTTP status: 200 200 (cache) 304 By Google's "Page Speed". What I'm confused about is the difference between 200 (cache) and 304. I've refreshed the page multiple times (but have not cleared my cache) and it...
When a user requests the same page, with the same data...I'd like Django to return a 304, so that the browser doesn't have to load the page all over again. I'm new to this. How can this be done? Thanks. ...
def list_ajax(reqest): #q = request.GET.get('q',None) #get all where var = q. return ... list_ajax = condition(etag_func=list_ajax)(list_ajax) As you can see, I'm trying to return a 304 to the client if the result is the same. But, I am getting this Django error, why?: Traceback: File "/usr/local/lib/python2.6/dist-package...
Sorry for the probably wrong title. I am writing some code to handle If-Modified-Since and If-None-Match requests as part of caching. Everything works perfect except for that PHP returns some content (an empty line) after the headers. The page content should be empty instead. The code that I am using is: <?php $lastmod = filemtime($f); ...
Hi, Any ideas why on some links that I try to access using HttpWebRequest I am getting "The remote server returned an error: (304) Not Modified." in the code? The code I'm using is from Jeff's post here. Note the concept of the code is a simple proxy server, so I'm pointing my browser at this locally running piece of code, which gets ...
I have a couple of projects in Django and alternate between one and another every now and then. All of them have a /media/ path, which is served by django.views.static.serve, and they all have a /media/css/base.css file. The problem is, whenever I run one project, the requests to base.css return an HTTP 304 (not modified), probably beca...
Curious to know how common it is for web servers to use etags, especially with RSS feeds? Also I can't seem to find what the maximum length can be for the etag header. The HTTP spec fails to mention it, at least the part that I was reading. ...
Sorry if this question sounds a bit basic, I just want to be double sure. I retrieve my images with a URL like so image.jpg?m=54437 The end numbers allow me to cache control it. When the image changes, so do those numbers. I am sending these headers with these images HTTP/1.1 200 OK Date: Thu, 01 Jul 2010 00:54:19 GMT Server: Ap...
I get back 304 Not Modified from the web server, but in Firebug, the request header doesn't have Etag and doesn't have If-Modified-Since, and I looked at all the header line and there was no datetime info at all, so how does the server know the content is not modified? ...
I'm using nginx + passenger + ree to host my web app in a linode vps. The config i'm using is the following: user ***; worker_processes 4; events { worker_connections 1024; } http { passenger_root /opt/passenger-2.2.15; passenger_ruby /opt/ruby-enterprise-1.8.7-2010.02/bin/my_ruby.sh; passenger_max_pool_size 10; ...
I've got a site with a basic login/logout system. When I display pages I do a check to see when the page was last modified and if the browser has sent an if modified since header. If it hasn't been modified I send a 304 header and exit. This obviously loads the page alot quicker and means less memory and processing power for me as I do...
In other words: Can I respond with a 304 and have it "just work"? ...
class DefaultErrorHandler(urllib2.HTTPDefaultErrorHandler): 1 def http_error_default(self, req, fp, code, msg, headers): 2 result = urllib2.HTTPError( req.get_full_url(), code, msg, headers, fp) result.status = code 3 return res...
Did you know you can prevent the revalidation of files in browser cache and subsequent 304 response by completely removing both the ETag and Last-Modifed response headers? Of course, this is easy in Apache, but as clear as mud in IIS 6. Does anyone know how to remove both of these headers in IIS? ...