There may be cases where you are sure that the URL is correct, yet the error persists. Decode the URL and encode it again to make sure it is correct. When encountering a 400 bad request error because of a wrong URL, use an encoder/decoder tool.
If you enter a URL or click on a link that’s badly encoded, you’ll end up with a bad request error 400. However, a URL can be encoded incorrectly and thus contain incorrect syntax, like double percentage characters (%%).
For example, one of the most common encodings is replacing space with %20. URL encoding converts characters into ASCII characters to make them transferable on the internet. If you type in in the URL bar with an extra percentage character, it will result in a 400 bad request error.Ī badly encoded URL can also cause this error. If the URL contains a directory path, file name, or query string, pay attention to special symbols such as a hyphen (-) or percentage character (%).įor example, is the correct domain name. It’s easy to mistype a URL, so be sure to check the domain name spelling. This may include a mistyped URL, malformed syntax, and illegal characters in the URL. One of the most common causes of HTTP status 400 bad request error is a wrong URL. If that doesn’t work, then you should try the following methods. The first action we recommend is refreshing the page. Bad DNS cache – if the website has moved to a new domain name or web host, the DNS cache data in your operating system may be invalid.This commonly happens on login pages such as the WordPress login page. Corrupted browser cookies or cache – expired cookies or corrupted browser cache may interfere with the request and trigger the error.An attempt to upload a file that exceeds this limit can be considered a bad request and trigger the HTTP 400 error status code. Large file size – websites have a file upload limit.A wrongly encoded URL can also contain wrongly used ASCII characters, such as double percentage characters. Malformed URL syntax – the URL may contain invalid characters such as.Some common causes of the 400 bad request error are: In most cases, client-side issues trigger the error.
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Thus, it won’t process it and will send you the error code instead. The error 400 bad request happens when the server can’t understand the request. Then, the server processes the request and sends back the page you want. When you try to access a website, your computer sends a request to the web server. Like Mozilla Firefox, the browser will appear blank with no indication of the HTTP 400 bad request error. There’s no text indicating that you encountered an HTTP 400 bad request error, which makes identifying the problem harder. Mozilla Firefox will show a blank page when you try to access a website using the wrong syntax. The only difference is the icon, as Opera uses its logo. The HTTP 400 bad request error in Opera displays the same text as Google Chrome. Microsoft Edge has a design almost identical to Google Chrome’s, with the HTTP ERROR 400 text at the bottom. Then, you’ll find the HTTP ERROR 400 at the bottom of the message. Here is how the HTTP 400 bad request status code looks on different browsers: Google Chromeįor 400 bad request, Chrome will show an error icon with The page isn’t working text followed by If the problem continues, contact the site owner. However, if the site doesn’t have a customized error page, the web browser will show the default one. For example, Google has a custom 400 bad request error page that looks the same on all web browsers. Just like a 404 error page, the 400 bad request page is customizable. “400 Bad Request Error” on Different Browsers Request Header Or Cookie Too Largeīad Request – Your browser sent a request that this server could not understand The client should not repeat the request without modifications.Ĥ00 Bad Request. The request could not be understood by the server due to malformed syntax. The request hostname is invalidĤ00 – Bad Request. “400 Bad Request Error” on Different Browsers.
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