PostBody Object

• data (UploadRawData | UploadFile)[] - The post data to be sent to the new window.
• contentType String - The content-type header used for the data. One of application/x-www-form-urlencoded or multipart/form-data. Corresponds to the enctype attribute of the submitted HTML form.
• boundary String (optional) - The boundary used to separate multiple parts of the message. Only valid when contentType is multipart/form-data.

Note that keys starting with -- are not currently supported. For example, this will errantly submit as multipart/form-data when nativeWindowOpen is set to false in webPreferences:

<form
target="_blank"
method="POST"
enctype="application/x-www-form-urlencoded"
action="https://postman-echo.com/post"
>
<inputtype="text"name="--theKey">
<inputtype="submit">
</form>