If the user tries to access a page which isn't available, he/she is moved to a custom 404.html.
What I'm wondering is if is it possible to access the original requested URL from the custom 404.html, using just HTML? I haven't used PhP or any other side technology.
My code look like this:
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p>The requested URL was not found on this server.</p>
<p>Additionally, a 404 Not Found
error was encountered while trying to use an ErrorDocument to handle the request.</p>
</body></html>
If anyone know how do this, please let me know. Thank you in advance!
Long story short, answer to your question: no, it is not possible to get url by using HTML ONLY, you need to either use client side or server side language.
for example, in javascript, you would do something like this to get previous url,
document.referrer
this would actually be ideal for your scenario, as this work very well, if you arrived at the current page via a link ( not by doing, for example, by bookmark or typing in the address bar).
I have this problem. Chrome continues to return this error
Resource interpreted as stylesheet but transferred with MIME type text/html
The files affected by this error are just the Style, chosen and jquery-gentleselect (other CSS files that are imported in the index in the same way work well and without error). I've already checked my MIME type and text/css is already on CSS.
Honestly I'd like to start by understanding the problem (a thing that seems I cannot do alone).
i'd like to start by understanding the problem
Browsers make HTTP requests to servers. The server then makes an HTTP response.
Both requests and responses consist of a bunch of headers and a (sometimes optional) body with some content in it.
If there is a body, then one of the headers is the Content-Type which describes what the body is (is it an HTML document? An image? The contents of a form submission? etc).
When you ask for your stylesheet, your server is telling the browser that it is an HTML document (Content-Type: text/html) instead of a stylesheet (Content-Type: text/css).
I've already checked my myme.type and text/css is already on css.
Then something else about your server is making that stylesheet come with the wrong content type.
Use the Net tab of your browser's developer tools to examine the request and the response.
Using Angular?
This is a very important caveat to remember.
The base tag needs to not only be in the head but in the right location.
I had my base tag in the wrong place in the head, it should come before any tags with url requests. Basically placing it as the second tag underneath the title solved it for me.
<base href="/">
I wrote a little post on it here
I also had problem with this error, and came upon a solution. This does not explain why the error occurred, but it seems to fix it in some cases.
Include a forward slash / before the path to the css file, like so:
<link rel="stylesheet" href="/css/bootstrap.min.css">
My issue was simpler than all the answers in this post.
I had to setup IIS to include static content.
Setting the Anonymous Authentication Credentials to Application Pool Identity did the trick for me.
Try this <link rel="stylesheet" type="text/css" href="../##/yourcss.css">
where ## is your folder wherein is your .CSS - file
Don't forget about the: .. (double dots).
I was also facing the same problem. And after doing some R&D, I found that the problem was with the file name. The name of the actual file was "lightgallery.css" but while linking I has typed "lightGallery.css".
More Info:
It worked well on my localhost (OS: Windows 8.1 & Server: Apache).
But when I uploaded my application to a remote server ( Different OS & Web server than than my localhost) it didn't work, giving me the same error as yours.
So, the issue was the case sensitivity (with respect to file names) of the server.
In case you serve static css with nginx you should add
location ~ \.css {
add_header Content-Type text/css;
}
location ~ \.js {
add_header Content-Type application/x-javascript;
}
or
location ~ \.css{
default_type text/css;
}
location ~ \.js{
default_type application/x-javascript;
}
to nginx conf
Based on the other answers it seems like this message has a lot of causes, I thought I'd just share my individual solution in case anyone has my exact problem in the future.
Our site loads the CSS files from an AWS Cloudfront distribution, which uses an S3 bucket as the origin. This particular S3 bucket was kept synced to a Linux server running Jenkins. The sync command via s3cmd sets the Content-Type for the S3 object automatically based on what the OS says (presumably based on the file extension). For some reason, in our server, all the types were being set correctly except .css files, which it gave the type text/plain. In S3, when you check the metadata in the properties of a file, you can set the type to whatever you want. Setting it to text/css allowed our site to correctly interpret the files as CSS and load correctly.
#Rob Sedgwick's answer gave me a pointer, However, in my case my app was a Spring Boot Application. So I just added exclusions in my Security Config for the paths to the concerned files...
NOTE - This solution is SpringBoot-based... What you may need to do might differ based on what programming language you are using and/or what framework you are utilizing
However the point to note is;
Essentially the problem can be caused when every request, including
those for static content are being authenticated.
So let's say some paths to my static content which were causing the errors are as follows;
A path called "plugins"
http://localhost:8080/plugins/styles/css/file-1.css
http://localhost:8080/plugins/styles/css/file-2.css
http://localhost:8080/plugins/js/script-file.js
And a path called "pages"
http://localhost:8080/pages/styles/css/style-1.css
http://localhost:8080/pages/styles/css/style-2.css
http://localhost:8080/pages/js/scripts.js
Then I just add the exclusions as follows in my Spring Boot Security Config;
#Configuration
#EnableGlobalMethodSecurity(prePostEnabled = true)
#Order(SecurityProperties.ACCESS_OVERRIDE_ORDER)
public class SecurityConfig extends WebSecurityConfigurerAdapter {
#Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests()
.antMatchers(<comma separated list of other permitted paths>, "/plugins/**", "/pages/**").permitAll()
// other antMatchers can follow here
}
}
Excluding these paths "/plugins/**" and "/pages/**" from authentication made the errors go away.
Cheers!
Using Angular
In my case using ng-href instead of href solved it for me.
Note :
I am working with laravel as back-end
If you are on JSP, this problem can come from your servlet mapping.
if your mapping takes url by defaut like this:
#WebServlet("/")
then the container interpret your css url, and goes to the servlet instead of going to the css file.
i had the same issue, i changed my mapping and now everyting works
i was facing the same thing, with sort of the same .htaccess file for making pretty urls. after some hours of looking around and experimenting. i found out that the error was because of relatively linking files.
the browser will start fetching the same source html file for all the css, js and image files, when i would browse a few steps deep into the server.
to counter this you can either use the <base> tag on your html source,
<base href="http://localhost/assets/">
and link to files like,
<link rel="stylesheet" type="text/css" href="css/style.css" />
<script src="js/script.js"></script>
or use absolute links for all your files.
<link rel="stylesheet" type="text/css" href="http://localhost/assets/css/style.css" />
<script src="http://localhost/assets/js/script.js"></script>
<img src="http://localhost/assets/images/logo.png" />
I have a similar problem in MVC4 using forms authentication. The problem was this line in the web.config,
<modules runAllManagedModulesForAllRequests="true">
This means that every request, including those for static content, being authenticated.
Change this line to:
<modules runAllManagedModulesForAllRequests="false">
I also face this problem recently on chrome. I just give absolute path to my CSS file problem solve.
<link rel="stylesheet" href="<?=SS_URL?>arica/style.css" type="text/css" />
For anyone that might be having this issue.
I was building a custom MVC in PHP when I encountered this issue.
I was able to resolve this by setting my assets (css/js/images) files to an absolute path.
Instead of using url like href="css/style.css" which use this entire current url to load it. As an example, if you are in http://example.com/user/5, it will try to load at http://example.com/user/5/css/style.css.
To fix it, you can add a / at the start of your asset's url (i.e. href="/css/style.css"). This will tell the browser to load it from the root of your url. In this example, it will try to load http://example.com/css/style.css.
Hope this comment will help you.
It is because you must have set content type as text/html instead of text/css for your server page (php,node.js etc)
I want to expand on Todd R's point in the OP. In asp.net pages, the web.config file defines permissions needed to access each file or folder in the application. In our case, the folder of CSS files did not allow access for unauthorized users, causing it to fail on the login page before the user was authorized. Changing the required permissions in web.config allowed unauthorized users to access the CSS files and solved this problem.
I have the same exact problem and after a few minutes fooling around I deciphered that I missed to add the file extension to my header. so I changed the following line :
<link uic-remove rel="stylesheet" href="css/bahblahblah">
to
<link uic-remove rel="stylesheet" href="css/bahblahblah.css">
Using React
I came across this error in my react profile app. My app behaved kind of like it was trying to reference a url that doesn't exist. I believe this has something to do with how webpack behaves.
If you are linking files in your public folder you must remember to use %PUBLIC_URL% before the resource like this:
<link type="text/css" rel="stylesheet" href="%PUBLIC_URL%/bootstrap.min.css" />
In case anyone comes to this post and has a similar issue. I just experienced a similar problem, but the solution was quite simple.
A developer had mistakenly dropped a copy of the web.config into the CSS directory. Once deleted, all errors were resolved and the page properly displayed.
I came across the same issue whilst resuming work on a old MEAN stack project. I was using nodemon as my local development server and got the same error Resource interpreted as stylesheet but transferred with MIME type text/html. I changed from nodemon to http-server which can be found here. It immediately worked for me.
This occurred when I removed the protocol from the css link for a css stylesheet served by a google CDN.
This gives no error:
<link rel="stylesheet" href="//fonts.googleapis.com/css?family=Architects+Daughter">
But this gives the error Resource interpreted as Stylesheet but transferred with MIME type text/html :
<link rel="stylesheet" href="fonts.googleapis.com/css?family=Architects+Daughter">
I was facing similar issue. And Exploring solutions in this fantastic Stack Overflow page.
user54861 's response (mismatching names in case sensetivity) makes me curious to inspect my code again and realized that "I didnt upload two js files that I loaded them in head tag". :-)
When I uploaded them the issue runs away ! And code runs and page rendered without any another error!
So, moral of the story is don't forget to make sure that all of your js files are uploaded where the page is looking for them.
I came across the same issue with a .NET application, a CMS open-source called MojoPortal. In one of my themes and skin for a particular site, when browsing or testing it would grind and slow down like it was choking.
My issue was not of the "type" attribute for the CSS but it was "that other thing". My exact change was in the Web.Config. I changed all the values to FALSE for MinifyCSS, CacheCssOnserver, and CacheCSSinBrowser.
Once that was set the web site was speedy once again in production.
Had the same error because I forgot to send a correct header a first
header("Content-type: text/css; charset: UTF-8");
print 'body { text-align: justify; font-size: 2em; }';
I encountered this problem when loading CSS for a React layout module that I installed with npm. You have to import two .css files to get this module running, so I initially imported them like this:
#import "../../../../node_modules/react-grid-layout/css/styles.css";
but found out that the file extension has to be dropped, so this worked:
#import "../../../../node_modules/react-grid-layout/css/styles";
If nodejs and using express
the below code works...
res.set('Content-Type', 'text/css');
I started to get the issue today only on chrome and not safari for the same project/url for my goormide container (node.js)
After trying several suggestions above which didn't appear to work and backtracking on some code changes I made from yesterday to today which also made no difference I ended up in the chrome settings clicking:
1.Settings;
2.scroll down to bottom, select: "Advanced";
3.scroll down to bottom, select: "Restore settings to their original defaults";
That appears to have fixed the problem as I no longer get the warning/error in the console and the page displays as it should. Reading the posts above it appears the issue can occur from any number of sources so the settings reset is a potential generic fix.
Cheers
If you are serving the app in prod make sure you are serving the static files with service worker. I had this error when I was serving only static subfolder of React build on Django (without assets that have styles)
I've got a product that embeds into websites similarly to Paypal (customers add my button to their website, users click on this button and once the service is complete I redirect them back to the original website).
I'd like to demo my technology to customers without actually modifying their live website. To that end, is it possible to configure http://stackoverflow.myserver.com/ so it mirrors http://www.stackoverflow.com/ while seamlessly injecting my button?
Meaning, I want to demo the experience of using my button on the live website without actually re-hosting the customer's database on my server.
I know there are security concerns here, so feel free to mention them so long as we meet the requirements. I do not need to demo this for website that uses HTTPS.
More specifically, I would like to demonstrate the idea of financial bounties on Stackoverflow questions by injecting a Paypal button into the page. How would I demo this off http://stackoverflow.myserver.com/ without modifying https://stackoverflow.com/?
REQUEST TO REOPEN: I have reworded the question to be more specific per your request. If you still believe it is too broad, please help me understand your reasoning by posting a comment below.
UPDATE: I posted a follow-up challenge at How to rewrite URLs referenced by Javascript code?
UPDATE2: I discarded the idea of bookmarklets and Greasemonkey because they require customer-side installation/modification. We need to make the process as seamless as possible, otherwise many of get turned off by the process and won't let us pitch.
I would suggest to create a proxy using a HTTP handler.
In the ProcessRequest you can do a HttpWebRequest to get the content on the other side, alter it and return the adjusted html to the browser. You can rewrite the urls inside to allow the loading of images, etc from the original source.
public void ProcessRequest(HttpContext context)
{
// get the content using HttpWebRequest
string html = ...
// alter it
// write back the adjusted html
context.Response.Write(html);
}
If you're demoing on the client-side and looking to just hack it in quickly, you could pull it off with some jQuery. I slapped the button after the SO logo just for a demo. You could type this into your console:
$('head').append('<script src="https://www.paypalobjects.com/js/external/dg.js" type="text/javascript"></script>')
$('#hlogo').append('<form action="https://www.sandbox.paypal.com/webapps/adaptivepayment/flow/pay" target="PPDGFrame" class="standard"><label for="buy">Buy Now:</label><input type="image" id="submitBtn" value="Pay with PayPal" src="https://www.paypalobjects.com/en_US/i/btn/btn_paynowCC_LG.gif"><input id="type" type="hidden" name="expType" value="light"><input id="paykey" type="hidden" name="paykey" value="insert_pay_key">')
var embeddedPPFlow = new PAYPAL.apps.DGFlow({trigger: 'submitBtn'});
Now, I'm not sure if I did something wrong or not because I got this error on the last part:
Expected 'none' or URL but found 'alpha('. Error in parsing value for 'filter'. Declaration dropped.
But at any rate if you are demoing you could just do this, maybe as a plan B. (You could also write a userscript for this so you don't have to open the console, I guess?)
After playing with this for a very long time I ended up doing the following:
Rewrite the HTML and JS files on the fly. All other resources are hosted by the original website.
For HTML files, inject a <base> tag, pointing to the website being redirected. This will cause the browser to automatically redirect relative links (in the HTML file, CSS files, and even Flash!) to the original website.
For the JS files, apply a regular expression to patch specific sections of code that point to the wrote URL. I load up the redirected page in a browser, look for broken links, and figure out which section of JS needs to be patched to correct the problem.
This sounds a lot harder than it actually is. On average, patching each page takes less than 5 minutes of work.
The big discovery was the <base> tag! It corrected the vast majority of links on my behalf.
i wonder if there is some way to do something like that:
If im on a specific site i want that some of javascript files to be loaded directly from my computer (f.e. file:///c:/test.js), not from the server.
For that i was thinking if there is a possibility to make an extension which could change HTML code in a response which browser gets right before displaying it. So whole process should look like that:
request is made
browser gets response from server
#response is changed# - this is the part when extension comes in
browser parse changed response and display page with that new response.
It doesnt even have to be a Chrome extension anyway. It should just do the job described above. It can block original file and serve another one (DNS/proxy?) or filter whole HTTP traffic in my computer and replace specific code to another one of matched response.
You can use the WebRequest API to achieve that. For example, you can add a onBeforeRequest listener and redirect some requests:
chrome.webRequest.onBeforeRequest.addListener(function(details)
{
var responseData = "<div>Some text</div>"
return {redirectUrl: "data:text/html," + encodeURIComponent(responseData)};
}, {urls: ["https://www.google.com/"]}, ["blocking"]);
This will display a <div> element with the text "some text" instead of the Google homepage. Note that you can only redirect to URLs that the web server itself is allowed to redirect to. This means that redirecting to file:/// URLs is not possible, and you can only redirect to files inside your extension if these are web accessible. data: and http: URLs work fine however.
In Windows you can use the Proxomitron (proxomitron.info) which is a local proxy that can intercept any page or file being loading into your browser and change it using regular expressions (no DOM parsing) however you want, before it is rendered by the browser.