3 examples of 'express headers' in JavaScript

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6function secureHeaders (app, frontendApp) {
7 // Content Security Policy
8 app.use(helmet.contentSecurityPolicy({
9 directives: {
10 defaultSrc: ["'none'"],
11 // Allow
38public getHeader(field: string): string | undefined {
39 return this.req.header(field);
40}
88addCustomHeaders(customHeaders?: ICustomHeader[]) {
89 if (customHeaders) {
90 this.addUse(null, (req, res, next) => {
91 customHeaders.forEach((customHeader) => {
92 let value: string | undefined = customHeader.value.toString();
93 if (customHeader.isEnv && value && process.env[value]) {
94 value = process.env[value];
95 }
96 res.header(customHeader.key, value);
97 });
98 next();
99 });
100 }
101}

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