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Contents
import { isResponseWithoutBody } from '../../../utils/responseUtils'
/**
* Creates a Fetch API `Response` instance from the given
* `XMLHttpRequest` instance and a response body.
*/
export function createResponse(
request: XMLHttpRequest,
body: BodyInit | null
): Response {
/**
* Handle XMLHttpRequest responses that must have null as the
* response body when represented using Fetch API Response.
* XMLHttpRequest response will always have an empty string
* as the "request.response" in those cases, resulting in an error
* when constructing a Response instance.
* @see https://github.com/mswjs/interceptors/issues/379
*/
const responseBodyOrNull = isResponseWithoutBody(request.status) ? null : body
return new Response(responseBodyOrNull, {
status: request.status,
statusText: request.statusText,
headers: createHeadersFromXMLHttpReqestHeaders(
request.getAllResponseHeaders()
),
})
}
function createHeadersFromXMLHttpReqestHeaders(headersString: string): Headers {
const headers = new Headers()
const lines = headersString.split(/[\r\n]+/)
for (const line of lines) {
if (line.trim() === '') {
continue
}
const [name, ...parts] = line.split(': ')
const value = parts.join(': ')
headers.append(name, value)
}
return headers
}
Version data entries
26 entries across 26 versions & 1 rubygems