Access-Control-Allow-Origin

Esta tradução está incompleta. Ajude a traduzir este artigo em inglês

O Access-Control-Allow-Origin cabeçalho de resposta indica se os recursos da resposta podem ser compartilhados com a origin dada.

Tipo de cabeçalho Response header
Forbidden header name no

Sintaxe

Access-Control-Allow-Origin: *
Access-Control-Allow-Origin: <origin>

Diretivas

*
Para as requisições sem credenciais, o servidor pode especificar "*" como um curinga, permitindo assim que qualquer origem acesse o recurso.
<origin>
Especifica a URI que pode acessar o recurso.

Exemplos

Para permitir que qualquer origin acesse o seu recurso, você pode especificar desta forma:

Access-Control-Allow-Origin: *

Para permitir que https://developer.mozilla.org acesse seu recurso, você pode especificar:

Access-Control-Allow-Origin: https://developer.mozilla.org

CORS e caching

Se o servidor especificar um host de origem em vez de "*", ele também deverá incluir "Origin" no cabeçalho de resposta Vary para indicar aos clientes que as respostas do servidor serão diferentes com base no valor da solicitação Origin cabeçalho.

Access-Control-Allow-Origin: https://developer.mozilla.org
Vary: Origin

Especificações

Specification Status Comment
Fetch
The definition of 'Access-Control-Allow-Origin' in that specification.		 Padrão em tempo real Initial definition.

Compatibilidade de browser

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Access-Control-Allow-OriginChrome Full support 4Edge Full support 12Firefox Full support 3.5IE Full support 10Opera Full support 12Safari Full support 4WebView Android Full support 2Chrome Android Full support YesFirefox Android Full support 4Opera Android Full support 12Safari iOS Full support 3.2Samsung Internet Android Full support Yes

Legend

Full support  
Full support

Veja também

Tópicos relacionados
  1. HTTP
  2. Guides:
  3. Resources and URIs
    1. Identifying resources on the Web
    2. Data URIs
    3. Introduction to MIME Types
    4. Complete list of MIME Types
    5. Choosing between www and non-www URLs
  4. HTTP guide
    1. Basics of HTTP
    2. Overview of HTTP
    3. Evolution of HTTP
    4. HTTP Messages
    5. A typical HTTP session
    6. Connection management in HTTP/1.x
    7. Protocol upgrade mechanism
  5. HTTP security
    1. Content Security Policy (CSP)
    2. HTTP Public Key Pinning (HPKP)
    3. HTTP Strict Transport Security (HSTS)
    4. Cookie security
    5. X-Content-Type-Options
    6. X-Frame-Options
    7. X-XSS-Protection
    8. Mozilla web security guidelines
    9. Mozilla Observatory
  6. HTTP access control (CORS)
  7. HTTP authentication
  8. HTTP caching
  9. HTTP compression
  10. HTTP conditional requests
  11. HTTP content negotiation
  12. HTTP cookies
  13. HTTP range requests
  14. HTTP redirects
  15. HTTP specifications
  16. Feature policy
  17. References:
  18. HTTP headers
    1. Accept [Traduzir]
    2. Accept-CH [Traduzir]
    3. Accept-CH-Lifetime [Traduzir]
    4. Accept-Charset [Traduzir]
    5. Accept-Encoding [Traduzir]
    6. Accept-Language
    7. Accept-Patch [Traduzir]
    8. Accept-Ranges [Traduzir]
    9. Access-Control-Allow-Credentials [Traduzir]
    10. Access-Control-Allow-Headers [Traduzir]
    11. Access-Control-Allow-Methods [Traduzir]
    12. Access-Control-Allow-Origin
    13. Access-Control-Expose-Headers [Traduzir]
    14. Access-Control-Max-Age [Traduzir]
    15. Access-Control-Request-Headers
    16. Access-Control-Request-Method [Traduzir]
    17. Age
    18. Allow [Traduzir]
    19. Alt-Svc [Traduzir]
    20. Authorization [Traduzir]
    21. Cache-Control
    22. Clear-Site-Data [Traduzir]
    23. Conexão
    24. Content-Disposition [Traduzir]
    25. Content-Encoding [Traduzir]
    26. Content-Language
    27. Content-Length
    28. Content-Location
    29. Content-Range [Traduzir]
    30. Content-Security-Policy [Traduzir]
    31. Content-Security-Policy-Report-Only [Traduzir]
    32. Content-Type
    33. Cookie [Traduzir]
    34. Cookie2 [Traduzir]
    35. Cross-Origin-Resource-Policy [Traduzir]
    36. DNT [Traduzir]
    37. DPR [Traduzir]
    38. Date [Traduzir]
    39. Device-Memory [Traduzir]
    40. Digest [Traduzir]
    41. ETag [Traduzir]
    42. Early-Data [Traduzir]
    43. Expect [Traduzir]
    44. Expect-CT [Traduzir]
    45. Expires
    46. Feature-Policy [Traduzir]
    47. Forwarded [Traduzir]
    48. From [Traduzir]
    49. Host
    50. If-Match [Traduzir]
    51. If-Modified-Since
    52. If-None-Match [Traduzir]
    53. If-Range [Traduzir]
    54. If-Unmodified-Since
    55. Index [Traduzir]
    56. Keep-Alive
    57. Large-Allocation [Traduzir]
    58. Last-Modified
    59. Link [Traduzir]
    60. Location
    61. Origin [Traduzir]
    62. Pragma [Traduzir]
    63. Proxy-Authenticate [Traduzir]
    64. Proxy-Authorization [Traduzir]
    65. Public-Key-Pins [Traduzir]
    66. Public-Key-Pins-Report-Only [Traduzir]
    67. Range [Traduzir]
    68. Referer
    69. Referrer-Policy [Traduzir]
    70. Retry-After
    71. Save-Data [Traduzir]
    72. Sec-WebSocket-Accept [Traduzir]
    73. Server
    74. Server-Timing [Traduzir]
    75. Set-Cookie
    76. Set-Cookie2 [Traduzir]
    77. SourceMap
    78. Strict-Transport-Security
    79. TE [Traduzir]
    80. Timing-Allow-Origin [Traduzir]
    81. Tk [Traduzir]
    82. Trailer [Traduzir]
    83. Transfer-Encoding [Traduzir]
    84. Upgrade-Insecure-Requests
    85. User-Agent
    86. Vary [Traduzir]
    87. Via [Traduzir]
    88. WWW-Authenticate
    89. Want-Digest [Traduzir]
    90. Warning [Traduzir]
    91. X-Content-Type-Options
    92. X-DNS-Prefetch-Control
    93. X-Forwarded-For [Traduzir]
    94. X-Forwarded-Host [Traduzir]
    95. X-Forwarded-Proto [Traduzir]
    96. X-Frame-Options [Traduzir]
    97. X-XSS-Protection [Traduzir]
  19. HTTP request methods
    1. CONNECT
    2. DELETE
    3. GET
    4. HEAD
    5. OPTIONS
    6. PATCH
    7. POST
    8. PUT
    9. TRACE
  20. HTTP response status codes
    1. 100 Continue
    2. 101 Switching Protocols
    3. 103 Early Hints
    4. 200 OK
    5. 201 Created
    6. 202 Accepted
    7. 203 Non-Authoritative Information
    8. 204 No Content
    9. 205 Reset Content
    10. 206 Partial Content
    11. 300 Multiple Choices
    12. 301 Moved Permanently
    13. 302 Found
    14. 303 See Other
    15. 304 Not Modified
    16. 307 Redirecionamento temporário
    17. 308 Permanent Redirect
    18. 400 Bad Request
    19. 401 Unauthorized
    20. 402 Payment Required
    21. 403 Forbidden
    22. 404 Not Found
    23. 405 Method Not Allowed
    24. 406 Not Acceptable
    25. 407 Proxy Authentication Required
    26. 408 Request Timeout
    27. 409 Conflict
    28. 410 Gone
    29. 411 Length Required
    30. 412 Precondition Failed
    31. 413 Payload Too Large
    32. 414 URI Too Long
    33. 415 Unsupported Media Type
    34. 416 Range Not Satisfiable
    35. 417 Expectation Failed
    36. 418 I'm a teapot
    37. 422 Unprocessable Entity
    38. 425 Too Early
    39. 426 Upgrade Required
    40. 428 Precondition Required
    41. 429 Too Many Requests
    42. 431 Request Header Fields Too Large
    43. 451 Unavailable For Legal Reasons
    44. 500 Internal Server Error
    45. 501 Not Implemented
    46. 502 Bad Gateway
    47. 503 Service Unavailable
    48. 504 Gateway Timeout
    49. 505 HTTP Version Not Supported
    50. 506 Variant Also Negotiates
    51. 507 Insufficient Storage
    52. 508 Loop Detected
    53. 510 Not Extended
    54. 511 Network Authentication Required
  21. CSP directives
    1. CSP: base-uri [Traduzir]
    2. CSP: block-all-mixed-content [Traduzir]
    3. CSP: child-src [Traduzir]
    4. CSP: connect-src [Traduzir]
    5. CSP: default-src [Traduzir]
    6. CSP: font-src [Traduzir]
    7. CSP: form-action [Traduzir]
    8. CSP: frame-ancestors [Traduzir]
    9. CSP: frame-src [Traduzir]
    10. CSP: img-src [Traduzir]
    11. CSP: manifest-src [Traduzir]
    12. CSP: media-src [Traduzir]
    13. CSP: navigate-to [Traduzir]
    14. CSP: object-src [Traduzir]
    15. CSP: plugin-types [Traduzir]
    16. CSP: prefetch-src [Traduzir]
    17. CSP: referrer [Traduzir]
    18. CSP: report-to [Traduzir]
    19. CSP: report-uri [Traduzir]
    20. CSP: require-sri-for [Traduzir]
    21. CSP: sandbox [Traduzir]
    22. CSP: script-src [Traduzir]
    23. CSP: script-src-attr [Traduzir]
    24. CSP: script-src-elem [Traduzir]
    25. CSP: style-src [Traduzir]
    26. CSP: style-src-attr [Traduzir]
    27. CSP: style-src-elem [Traduzir]
    28. CSP: trusted-types [Traduzir]
    29. CSP: upgrade-insecure-requests [Traduzir]
    30. CSP: worker-src [Traduzir]
  22. CORS errors
    1. Reason: CORS disabled [Traduzir]
    2. Reason: CORS header 'Access-Control-Allow-Origin' does not match 'xyz' [Traduzir]
    3. Reason: CORS header 'Access-Control-Allow-Origin' missing
    4. Reason: CORS header ‘Origin’ cannot be added [Traduzir]
    5. Reason: CORS preflight channel did not succeed [Traduzir]
    6. Razão: A requisição CORS não foi bem sucedida
    7. Reason: CORS request external redirect not allowed [Traduzir]
    8. Reason: CORS request not HTTP
    9. Reason: Credential is not supported if the CORS header ‘Access-Control-Allow-Origin’ is ‘*’ [Traduzir]
    10. Reason: Did not find method in CORS header ‘Access-Control-Allow-Methods’ [Traduzir]
    11. Reason: Multiple CORS header 'Access-Control-Allow-Origin' not allowed [Traduzir]
    12. Reason: expected ‘true’ in CORS header ‘Access-Control-Allow-Credentials’ [Traduzir]
    13. Reason: invalid token ‘xyz’ in CORS header ‘Access-Control-Allow-Headers’ [Traduzir]
    14. Reason: invalid token ‘xyz’ in CORS header ‘Access-Control-Allow-Methods’ [Traduzir]
    15. Reason: missing token ‘xyz’ in CORS header ‘Access-Control-Allow-Headers’ from CORS preflight channel [Traduzir]
  23. Feature-Policy directives
    1. Feature-Policy: accelerometer [Traduzir]
    2. Feature-Policy: ambient-light-sensor [Traduzir]
    3. Feature-Policy: autoplay [Traduzir]
    4. Feature-Policy: battery [Traduzir]
    5. Feature-Policy: camera [Traduzir]
    6. Feature-Policy: display-capture [Traduzir]
    7. Feature-Policy: document-domain [Traduzir]
    8. Feature-Policy: encrypted-media [Traduzir]
    9. Feature-Policy: fullscreen [Traduzir]
    10. Feature-Policy: geolocation [Traduzir]
    11. Feature-Policy: gyroscope [Traduzir]
    12. Feature-Policy: layout-animations [Traduzir]
    13. Feature-Policy: legacy-image-formats [Traduzir]
    14. Feature-Policy: magnetometer [Traduzir]
    15. Feature-Policy: microphone [Traduzir]
    16. Feature-Policy: midi [Traduzir]
    17. Feature-Policy: oversized-images [Traduzir]
    18. Feature-Policy: payment [Traduzir]
    19. Feature-Policy: picture-in-picture [Traduzir]
    20. Feature-Policy: publickey-credentials [Traduzir]
    21. Feature-Policy: speaker [Traduzir]
    22. Feature-Policy: sync-xhr [Traduzir]
    23. Feature-Policy: unoptimized-images [Traduzir]
    24. Feature-Policy: unsized-media [Traduzir]
    25. Feature-Policy: usb [Traduzir]
    26. Feature-Policy: vibrate [Traduzir]
    27. Feature-Policy: vr [Traduzir]
    28. Feature-Policy: wake-lock [Traduzir]
    29. Feature-Policy: xr [Traduzir]
    30. Feature-Policy: xr-spatial-tracking [Traduzir]