Error i am teapot

Если вы давно в Интернете, то наверняка встречали страницы с ошибками 404 («не найдено») или 403 («запрещено»). Но помимо них уже очень давно существует ошибка 418. Знаете, что она означает? Не поверите – «Я – [заварочный] чайник!».

♥ ПО ТЕМЕ: Опрос: Какого цвета кроссовки вы видите – белые или черные?

1 апреля 1998 года Internet Engineering Task Force (IETF, «Целевая группа по инженерному обеспечению Интернета) представила «протокол для контроля, мониторинга и диагностики кофемашин». В документе среди прочего описывались и ошибки. Проблема за номером 418 описывалась так: если кто-то попытается сварить кофе в чайнике, последний вежливо, но твердо сообщит: «Я – чайник. Ошибка 418».

Шутка прижилась (по крайней мере, в узких кругах). Например, у Google даже сегодня есть соответствующая страница Google.com/teapot.

В языках программирования Node.js и Google Go, фреймворке Microsoft ASP.NET ошибка 418 также присутствует как «пасхальное яйцо».

Однако летом 2017 года над 418-й нависла чудовищная угроза. Руководитель IETF Марк Ноттингем заявил, что эта ошибка никогда не была частью стандарта HTTP, за которым он надзирает (протокол HTTP отвечает за взаимодействие веб-браузеров и веб-серверов – прим. ред.). Так что 418-ю ошибку стоило бы лишить текущего гэг-наполнения и вместо него назначить что-нибудь более полезное.

«Я знаю, что это весело… но не стоит загрязнять базовый протокол».

♥ ПО ТЕМЕ: Биткоин: 10 удивительных фактов, о которых вы могли не знать.

Сторонники у погибающей ошибки нашлись сразу же. И главным из них, как ни странно, оказался 15-летний школьник-программист Шейн Брансвик. Он запустил кампанию «Save 418» и хэштэг #Save418.

«Такие вещи как она вызывают улыбку на лице. Это напоминание о том, что компьютеры делают люди. Потерять 418-ю было бы по-настоящему ужасно».

Другие пользователи указывают, что 418-я ошибка в своем нынешнем виде существовала так долго, что отказ от неё создаст проблемы многим сайтам.

Ноттингем, по его собственному признанию, не ожидал, что его предложение вызовет столь большой резонанс. Он уверяет, что просто хотел прояснить статус 418-й – или его отсутствие. Узнав о школьнике-защитнике старой ошибки, он написал в Twitter «Я плохой, плохой человек» и поставил ссылку на веб-сайт Save418. Разработчик говорит, что его приятно удивил сам факт того, что современный тинейджер проявляет такой интерес к стандарту, которому уже почти три десятилетия:

«Я на самом деле рад тому, что следующее поколение разработчиков по-прежнему уделяет большое внимание HTTP».

История с ошибкой 418 закончилась хэппи-эндом. Ноттингем пообещал, что официально сделает ошибку 418 частью HTTP-кода. Так что заявление «Я — чайник» совершенно законно окажется неотъемлемой частью интернета. Готовьте свои мемогенераторы! :).

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I use this code. I have nginx reverse-proxying requests to two separate HTTP servers. One handles requests for unauthenticated users, and the second handles requests for authenticated users. The problem in this particular case, is the first server is the one that determines if the user is authenticated. Please don’t ask why.

So, if the first server determines the user is authenticated, it responds 418 I'm a teapot. NGINX then reroutes the traffic internally to the second server. As far as the browser is concerned, it was a single request.

This is in the spirit of HTCPCP code 418, because if you attempt to BREW with a teapot, the appropriate response is «I’m not the kind of thing that can handle that request, but there may be others.» .. In other words, «I’m a teapot. Find a coffee maker.» (the second server being the coffee maker).

Ultimately, while 418 is not explicitly defined in RFC 7231, it is still covered by the umbrella of 4xx (Client Error).

6. Response Status Codes

• 4xx (Client Error): The request contains bad syntax or cannot be fulfilled

6.5. Client Error 4xx

• The 4xx (Client Error) class of status code indicates that the client
  seems to have erred. Except when responding to a HEAD request, the
  server SHOULD send a representation containing an explanation of the
  error situation, and whether it is a temporary or permanent
  condition. These status codes are applicable to any request method.
  User agents SHOULD display any included representation to the user.

[I am teapot]How to fix http error 418 (100% genuine)? 

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What do you know about 418 i am a pot error? 

The HTTP 418 i am a teapot client error response code indicates that the server refuses to brew occasional as a result of it’s, for good, a teapot. A combined occasional/tea pot that’s quickly out of coffee ought to instead come 503. This error could be a relation to Hyper Text occasional Pot management Protocol outlined in day jokes in 1998 and 2014.

Well, the cluster of individuals United Nations agency build these codes and set the standards is that the IETF or «Internet Engineering Task Force». To propose new standards, the members unleash RFC’s or «Requests for Comments» to the community. each year since 1989, they unleash a number of ridiculous RFC’s for Gregorian calendar month’s Fool Day and on April first, 1998, RFC 2324 introduced the «Hyper Text occasional Pot management Protocol» or (HTCPCP/1.0). This was a current protocol for dominant, monitoring, and identification occasional pots. Now, the RFC is pretty funny with lines like «Coffee pots heat water victimisation electronic mechanisms, thus there’s no hearth. (…) Now, you will be asking, if this can be a occasional protocol, why the «teapot» code? this can be answered in Section a pair of.3.2.body could also be short and stout». And rather like that the «418 I’m a teapot» code was born! Since then, it has been employed in all forms of wacky ways that. Google even observed «418» as a special error in their 2013 Gregorian calendar month Fool’s Joke «Google Nose» locution that «418: Scent transfer protocol error» indicates system congestion; please strive once more later»

If you check the full list of communications protocol standing codes, you will see one that basically stands out: «418: i am a teapot». thus what is that each one about? i am going to justify during a bit. But first, a extremely fast introduction on standing codes.

Whenever any page or file is accessed on your web site (whether it’s a user accessing it during a browser or an exploration engine locomotion a page), your server returns Associate in Nursing communications protocol standing code in response to the request and it provides info concerning the standing. as an example, some in style codes are “301 Page touched Permanently” and also the ever omnipresent “404 Page Not Found”.

Well, the cluster of individuals United Nations agency build these codes and set the standards is that the IETF or «Internet Engineering Task Force». To propose new standards, the members unleash RFC’s or «Requests for Comments» to the community. each year since 1989, they unleash a number of ridiculous RFC’s for Gregorian calendar month’s Fool Day and on April first, 1998, RFC 2324 introduced the «Hyper Text occasional Pot management Protocol» or (HTCPCP/1.0). This was a current protocol for dominant, monitoring, and identification occasional pots. Now, the RFC is pretty funny with lines like «Coffee pots heat water victimisation electronic mechanisms, thus there’s no hearth. Thus, no firewalls are necessary». If you have got ne’er browse it, it’s undoubtedly value a browse. I additional a link within the description below. Now, you will be asking, if this can be a occasional protocol, why the «teapot» code? this can be answered in Section a pair of.3.2. in this «Any decide to brew occasional with a pot ought to lead to the communications protocol error code 418 i am a teapot and the ensuing entity body could also be short and stout». And rather like that the «418 I’m a teapot» code was born! Since then, it has been employed in all forms of wacky ways that. Google even observed «418» as a special error in their 2013 Gregorian calendar month Fool’s Joke «Google Nose» saying that «418: Scent transfer protocol error» indicates system congestion; please strive once more later.

But must you ever use it? clearly with any server-side scripting language, you’ll pass no matter headers and standing codes you wish, as well as “418 I’m a teapot”. And any page you add this to ought to load simply fine in any browser. however keep in mind that 418 was created to indicate «an error» that is why it absolutely was created a four hundred series code, rather like however 404 is miscalculation. however however do search engines react once they see 418? in a {very} very pseudoscientific take a look at, I took 2 of my pet comes I keep around to check these type of things and altered them in order that they came the 418 I’m a pot code on each page. I then waited a number of weeks, created positive that Google reindexed and so checked the result.

What happened…? Did it go down in rank? Did it get delisted attributable to the error code? 

Nope! fully nothing happened. It appeared that Google unnoticed the 418 code.

So, if it hundreds fine in browsers and Google bot didn’t appear to worry, why shouldn’t you utilize 418, even though entirely as a goof? the rationale is simple: it’s terrible apply. If the page being requested could be a valid page, you ought to enable your server to throw it’s normal two hundred OK standing code. even though Google doesn’t count the 418 as a real «error», I didn’t take a look at in alternative search engines United Nations agency, rather than treating 418 as two hundred, it’d simply treat it as 404. (In that case, your web site are going to be delisted as a result of currently it’s «not found»). In reality, the sole time you ought to be victimisation the 418 code

There is a status code in HTTP, 418, which is “I’m a teapot.”

What are HTTP status codes anyway?

As most of you may know, HTTP is an application-layer protocol for transferring hypermedia documents throughout the web. HTTP status codes are set of numbers that are not continuous, which tells us about the response status for an HTTP request made. These responses are grouped into five classes for easy categorization.

1xx Informational Codes

So these codes start with one and come with any other two digits (for example, 100). Most of the codes are not important as a developer. The only code that makes sense for you to know would be 101, which is returned when an HTTP connection is upgraded to Web Socket Connections. More about web sockets.

2xx Success Codes

200 – OK

The most important and must know code is 200 which stands for ok. That means everything went well, the request was successfully processed, and the response was returned.

204 – No content returned from the server

This code means that there is no return data from the server to the client. This code is mostly found for caching updates. When there is no more data to cache, you will probably get 204.

206 – Partial Content

This code is mostly returned while streaming videos on the internet. If a requested video is large, you probably don’t want the entire video in a single request as the data would be immense, and it won’t be easy to handle that much data.

3xx Redirection Codes

301 – Moved Permanently

Indicates that the resource requested has been definitively moved to the URL given by the Location headers.

302 – Found

indicates that the resource requested has been temporarily moved to the URL given by the Location header. A browser redirects to this page, but search engines don’t update their links to the resource.

4xx Client Errors

400 Bad Request

Indicates that the server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing). This means that the client should not repeat the request without modification.

401 Unauthorized

Indicates that the request has not been applied because it lacks valid authentication credentials for the target resource. This status is sent with a WWW-Authenticate header that contains information on how to authorize correctly.

403 Forbidden Error

Indicates that the server understood the request but refuses to authorize it. This status is similar to 401, but in this case, re-authenticating will make no difference. The access is permanently forbidden and tied to the application logic, such as insufficient rights to a resource.

404 Page Not Found

Indicates that the server can’t find the requested resource. Links that lead to a 404 page are often called broken or dead links.

5xx Server Error Codes

When an HTTP code starts with 5 that means the server messed up something, it may have crashed or unable to process your request, or it could be any other reason.

500 Internal Server Error

This error indicates that the server has encountered an unexpected condition. This often occurs when an application request cannot be fulfilled because the application is misconfigured on the server.

502 Bad Gateway

This error is usually due to improperly configured proxy servers. However, the problem may also arise when there is poor IP communication between back-end computers, when the client’s server is overloaded, or when a firewall is functioning improperly.

503 Service Unavailable

This error occurs when the server is unable to handle requests due to a temporary overload or due to the server being temporarily closed for maintenance. The error indicates that the server will only temporarily be down.

418 I’m a teapot

So by now, you might have understood that 418 error is a client error. Technically, the 418 status code is not part of the HTTP Status Codes specification. This was implemented as a joke. In April 1998, the IETF (Internet Engineering Task Force), which handles the Internet standards, proposed this 418 status code as a joke to have a status code 418 that say’s “I am teapot, I can’t brew coffee”. Google has a dedicated page to show this status code. You can also check this out at https://www.google.com/teapot.

Frameworks like Node.JS and Golang allow you to return 418 as a status code, even if it’s not standardized.

If you are using express.js, you can set the status code as 418 for your response as in the image.

‌There is also a website https://save418.com/, which plea’s not to remove the 418 status code but wants to standardize it. Even though it has no technical meaning, but it’s fun to have it in the specification as it has been a part of the specification unofficially for a long time. Many servers may break if removed. You can implement this status code as an Easter egg on your website as well.

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