9 examples of 'express set headers' in JavaScript

72
export function setHeaders(res, headers) {
73
  if (!headers) {
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    return
75
  }
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  for (const key of Object.keys(headers)) {
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    res.setHeader(key, headers[key])
78
  }
79
}

209
injectCorsHeader(req, res, next) {
210
	if (!req.headers['origin']) {
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		return next();
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	}
213
214
	res.setHeader('access-control-allow-origin', req.headers['origin']);
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	res.setHeader('access-control-allow-credentials', 'true');
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	res.setHeader('access-control-expose-headers', this.corsExposeHeaders);
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	return next();
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}

85
function setHeader(req, res, next) {
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	res.writeHead(200, {'age': '42'});
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	return next();
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}

5
async use(context: any, next: (err?: any) => any): Promise {
6
  context.set('Access-Control-Allow-Methods', 'GET,HEAD,PUT,POST,DELETE,PATCH')
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  context.set('Access-Control-Allow-Origin', context.request.header.origin || context.request.origin)
8
  context.set('Access-Control-Allow-Headers', ['content-type'])
9
  context.set('Access-Control-Allow-Credentials', 'true')
10
  context.set('Content-Type', 'application/json; charset=utf-8')
11
  return next()
12
}

83
public flushHeaders() {
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  if (!this.response.headersSent) {
85
    this.response.flushHeaders();
86
  }
87
}

443
function setHeader(res, field, value) {
444
    if (!res.getHeader(field))
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        res.setHeader(field, value)
446
}

6
function secureHeaders (app, frontendApp) {
7
  // Content Security Policy
8
  app.use(helmet.contentSecurityPolicy({
9
    directives: {
10
      defaultSrc: ["'none'"],
11
      // Allow 

21
function cacheHeaders(req, res, next) {
22
    const exp = strftime('%a, %d %b %Y %H:%M:%S GMT',
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                (new Date(Date.now() + 7 * 24 * 60 * 60 * 1000)));
24
    res.setHeader('Expires', exp);
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    next();
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}

38
public getHeader(field: string): string | undefined {
39
  return this.req.header(field);
40
}