|  | <!DOCTYPE html> | 
|  | <meta charset=utf-8> | 
|  | <title>CORS and Client Hints</title> | 
|  |  | 
|  | <script src=/resources/testharness.js></script> | 
|  | <script src=/resources/testharnessreport.js></script> | 
|  | <script src=support.js?pipe=sub></script> | 
|  |  | 
|  | <h1>Request headers</h1> | 
|  | <div id=log></div> | 
|  | <script> | 
|  |  | 
|  | test(function() { | 
|  | var client = new XMLHttpRequest() | 
|  | client.open('GET', CROSSDOMAIN + 'resources/cors-makeheader.py?headers=x-print', false) | 
|  | client.setRequestHeader('x-print', 'unicorn') | 
|  | client.setRequestHeader('y-print', 'unicorn') | 
|  | assert_throws_dom("NetworkError", function() { client.send(null) }) | 
|  | }, 'Unspecified request headers are disallowed') | 
|  |  | 
|  | test(function() { | 
|  | var client = new XMLHttpRequest() | 
|  | client.open('GET', CROSSDOMAIN + 'resources/cors-makeheader.py?headers=x-print', false) | 
|  | client.setRequestHeader('device-memory', '') | 
|  | assert_throws_dom("NetworkError", function() { client.send(null) }) | 
|  | }, 'Unextractable device-memory client hint header is disallowed') | 
|  |  | 
|  | test(function() { | 
|  | var client = new XMLHttpRequest() | 
|  | client.open('GET', CROSSDOMAIN + 'resources/cors-makeheader.py?headers=x-print', false) | 
|  | client.setRequestHeader('dpr', '') | 
|  | assert_throws_dom("NetworkError", function() { client.send(null) }) | 
|  | }, 'Unextractable DPR client hint header is disallowed') | 
|  |  | 
|  | test(function() { | 
|  | var client = new XMLHttpRequest() | 
|  | client.open('GET', CROSSDOMAIN + 'resources/cors-makeheader.py?headers=x-print', false) | 
|  | client.setRequestHeader('width', '') | 
|  | assert_throws_dom("NetworkError", function() { client.send(null) }) | 
|  | }, 'Unextractable width client hint header is disallowed') | 
|  |  | 
|  | test(function() { | 
|  | var client = new XMLHttpRequest() | 
|  | client.open('GET', CROSSDOMAIN + 'resources/cors-makeheader.py?headers=x-print', false) | 
|  | client.setRequestHeader('viewport-width', '') | 
|  | assert_throws_dom("NetworkError", function() { client.send(null) }) | 
|  | }, 'Unextractable viewport-width client hint header is disallowed') | 
|  |  | 
|  | test(function() { | 
|  | var client = new XMLHttpRequest() | 
|  | client.open('GET', CROSSDOMAIN + 'resources/cors-makeheader.py?headers=x-print', false) | 
|  | client.setRequestHeader('rtt', '') | 
|  | assert_throws_dom("NetworkError", function() { client.send(null) }) | 
|  | client = new XMLHttpRequest() | 
|  | client.open('GET', CROSSDOMAIN + 'resources/cors-makeheader.py?headers=x-print', false) | 
|  | client.setRequestHeader('rtt', '-1') | 
|  | assert_throws_dom("NetworkError", function() { client.send(null) }) | 
|  | }, 'Test invalid rtt value is disallowed') | 
|  |  | 
|  | test(function() { | 
|  | var client = new XMLHttpRequest() | 
|  | client.open('GET', CROSSDOMAIN + 'resources/cors-makeheader.py?headers=x-print', false) | 
|  | client.setRequestHeader('downlink', '') | 
|  | assert_throws_dom("NetworkError", function() { client.send(null) }) | 
|  | client = new XMLHttpRequest() | 
|  | client.open('GET', CROSSDOMAIN + 'resources/cors-makeheader.py?headers=x-print', false) | 
|  | client.setRequestHeader('downlink', '-1.0') | 
|  | assert_throws_dom("NetworkError", function() { client.send(null) }) | 
|  | }, 'Test invalid downlink value is disallowed') | 
|  |  | 
|  | test(function() { | 
|  | var client = new XMLHttpRequest() | 
|  | client.open('GET', CROSSDOMAIN + 'resources/cors-makeheader.py?headers=x-print', false) | 
|  | client.setRequestHeader('ect', '') | 
|  | assert_throws_dom("NetworkError", function() { client.send(null) }) | 
|  | client = new XMLHttpRequest() | 
|  | client.open('GET', CROSSDOMAIN + 'resources/cors-makeheader.py?headers=x-print', false) | 
|  | client.setRequestHeader('ect', '6g') | 
|  | assert_throws_dom("NetworkError", function() { client.send(null) }) | 
|  | }, 'Test invalid ect value is disallowed') | 
|  |  | 
|  | </script> |