Убран явный content-type при отправке формы #5431
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When using FormData to submit POST requests using XMLHttpRequest or the Fetch API with the multipart/form-data content type (e.g. when uploading files and blobs to the server), do not explicitly set the Content-Type header on the request. Doing so will prevent the browser from being able to set the Content-Type header with the boundary expression it will use to delimit form fields in the request body. Source: https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest_API/Using_FormData_Objects#sending_files_using_a_formdata_object
Превью контента из опубликовано. |
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HellSquirrel
approved these changes
Jul 19, 2024
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Описание
При использовании
FormDataдля отправки POST-запросов с использованиемXMLHttpRequestилиFetch APIс типом содержимогоmultipart/form-data(например, при загрузке файлов и больших двоичных объектов на сервер) не указывайте явно заголовокContent-Typeв запросе. Это не позволит браузеру задать заголовокContent-Typeс граничным выражением (boundary), которое он будет использовать для разграничения полей формы в теле запроса.Источник:
https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest_API/Using_FormData_Objects#sending_files_using_a_formdata_object
P.S.: если не следовать этому правилу, то на бэке падает валидация формы:
FormData request header doesn't include boundaryЧек-лист
/css/color/,/tools/json/,/tools/gulp/#kak-ponyat)images/example.png,demos/example/,../demos/example/)