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Documentation Revamp

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Co-authored-by: jbdoumenjou <jb.doumenjou@gmail.com>
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Gérald Croës 2019-02-26 05:50:07 -08:00 • committed by Traefiker Bot
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# Headers
Adding Headers to the Request / Response
{: .subtitle }
![Headers](../assets/img/middleware/headers.png)
The Headers middleware can manage the requests/responses headers.
## Configuration Examples
### Adding Headers to the Request and the Response
Add the `X-Script-Name` header to the proxied request and the `X-Custom-Response-Header` to the response
??? example "File"
```toml
[Middlewares]
[Middlewares.testHeader.headers]
[Middlewares.testHeader.headers.CustomRequestHeaders]
X-Script-Name = "test"
[Middlewares.testHeader.headers.CustomResponseHeaders]
X-Custom-Response-Header = "True"
```
??? example "Docker"
```yml
a-container:
image: a-container-image
labels:
- "traefik.Middlewares.testHeader.Headers.CustomRequestHeaders.X-Script-Name=test",
- "traefik.Middlewares.testHeader.Headers.CustomResponseHeaders.X-Custom-Response-Header=True",
```
### Adding and Removing Headers
`X-Script-Name` header added to the proxied request, the `X-Custom-Request-Header` header removed from the request, and the `X-Custom-Response-Header` header removed from the response.
??? example "File"
```toml
[Middlewares]
[Middlewares.testHeader.headers]
[Middlewares.testHeader.headers.CustomRequestHeaders]
X-Script-Name = "test"
[Middlewares.testHeader.headers.CustomResponseHeaders]
X-Custom-Response-Header = "True"
```
??? example "Docker"
```yml
a-container:
image: a-container-image
labels:
- "traefik.Middlewares.testHeader.Headers.CustomRequestHeaders.X-Script-Name=test",
- "traefik.Middlewares.testHeader.Headers.CustomResponseHeaders.X-Custom-Response-Header=True",
```
### Using Security Headers
Security related headers (HSTS headers, SSL redirection, Browser XSS filter, etc) can be added and configured per frontend in a similar manner to the custom headers above.
This functionality allows for some easy security features to quickly be set.
??? example "File"
```toml
[Middlewares]
[Middlewares.testHeader.headers]
FrameDeny = true
SSLRedirect = true
```
??? example "Docker"
```yml
a-container:
image: a-container-image
labels:
- "traefik.Middlewares.testHeader.Headers.FrameDeny=true",
- "traefik.Middlewares.testHeader.Headers.SSLRedirect=true",
```
## Configuration Options
### General
!!! warning
If the custom header name is the same as one header name of the request or response, it will be replaced.
!!! note
The detailed documentation for the security headers can be found in [unrolled/secure](https://github.com/unrolled/secure#available-options).
### customRequestHeaders
The `customRequestHeaders` option lists the Header names and values to apply to the request.
### allowedHosts
The `allowedHosts` option lists fully qualified domain names that are allowed.
### hostsProxyHeaders
The `hostsProxyHeaders` option is a set of header keys that may hold a proxied hostname value for the request.
### sslRedirect
The `sslRedirect` is set to true, then only allow https requests.
### sslTemporaryRedirect
Set the `sslTemporaryRedirect` to `true` to force an SSL redirection using a 302 (instead of a 301).
### sslHost
The `SSLHost` option is the host name that is used to redirect http requests to https.
### sslProxyHeaders
The `sslProxyHeaders` option is set of header keys with associated values that would indicate a valid https request. Useful when using other proxies with header like: `"X-Forwarded-Proto": "https"`.
### sslForceHost
Set `sslForceHost` to true and set SSLHost to forced requests to use `SSLHost` even the ones that are already using SSL.
### stsSeconds
The `stsSeconds` is the max-age of the Strict-Transport-Security header. If set to 0, would NOT include the header.
### stsIncludeSubdomains
The `stsIncludeSubdomains` is set to true, the `includeSubdomains` will be appended to the Strict-Transport-Security header.
### stsPreload
Set `STSPreload` to true to have the `preload` flag appended to the Strict-Transport-Security header.
### forceSTSHeader
Set `ForceSTSHeader` to true, to add the STS header even when the connection is HTTP.
### frameDeny
Set `frameDeny` to true to add the `X-Frame-Options` header with the value of `DENY`.
### customFrameOptionsValue
The `customFrameOptionsValue` allows the `X-Frame-Options` header value to be set with a custom value. This overrides the FrameDeny option.
### contentTypeNosniff
Set `contentTypeNosniff` to true to add the `X-Content-Type-Options` header with the value `nosniff`.
### browserXssFilter
Set `BrowserXssFilter` to true to add the `X-XSS-Protection` header with the value `1; mode=block`.
### customBrowserXSSValue
The `customBrowserXssValue` option allows the `X-XSS-Protection` header value to be set with a custom value. This overrides the BrowserXssFilter option.
### contentSecurityPolicy
The `contentSecurityPolicy` option allows the `Content-Security-Policy` header value to be set with a custom value.
### publicKey
The `publicKey` implements HPKP to prevent MITM attacks with forged certificates.
### referrerPolicy
The `referrerPolicy` allows sites to control when browsers will pass the Referer header to other sites.
### isDevelopment
Set `isDevelopment` to true when developing. The AllowedHosts, SSL, and STS options can cause some unwanted effects. Usually testing happens on http, not https, and on localhost, not your production domain.
If you would like your development environment to mimic production with complete Host blocking, SSL redirects, and STS headers, leave this as false.