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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <html> |
| 3 <head> |
| 4 <title>Synchronous XMLHttpRequest and caching</title> |
| 5 </head> |
| 6 <body> |
| 7 <script src="../resources/testharness.js"></script> |
| 8 <script src="../resources/testharnessreport.js"></script> |
| 9 <script type="text/javascript"> |
| 10 |
| 11 // Test what caching XMLHttpRequest performs when issuing |
| 12 // sync requests over various verbs and with various |
| 13 // kinds of query portions. Without any cache control |
| 14 // headers. |
| 15 var verbs = [ "GET", |
| 16 "PUT", |
| 17 "POST", |
| 18 "DELETE", |
| 19 "OPTIONS", |
| 20 "PROPFIND"]; |
| 21 |
| 22 var query_kinds = [ |
| 23 {query: "'?random'", |
| 24 name: "constant query", |
| 25 // The list of verbs we expect the request not to be repeated for. |
| 26 should_cache: []}, |
| 27 {query: "", |
| 28 name: "no query", |
| 29 should_cache: []}, |
| 30 {query: "'?' + (Math.random() + Date.now()).toString()", |
| 31 name: "unique query string", |
| 32 should_cache: []}, |
| 33 {query: "'?'", |
| 34 name: "empty query", |
| 35 should_cache: []}]; |
| 36 |
| 37 var base_url = "resources/echo-random.php"; |
| 38 |
| 39 for (var i = 0; i < verbs.length; i++) { |
| 40 var verb = verbs[i]; |
| 41 for (var j = 0; j < query_kinds.length; j++) { |
| 42 var q1 = eval(query_kinds[j].query) || ""; |
| 43 |
| 44 var request_url1 = base_url + q1; |
| 45 var xhr1 = new XMLHttpRequest; |
| 46 xhr1.open(verb, request_url1, false); |
| 47 xhr1.send(); |
| 48 var result1 = xhr1.responseText; |
| 49 |
| 50 var xhr2 = new XMLHttpRequest(); |
| 51 var q2 = eval(query_kinds[j].query) || ""; |
| 52 var request_url2 = base_url + q2; |
| 53 xhr2.open(verb, request_url2, false); |
| 54 xhr2.send(); |
| 55 var result2 = xhr2.responseText; |
| 56 |
| 57 test(function () { |
| 58 if (query_kinds[j].should_cache.indexOf(verb) >= 0) |
| 59 assert_true(result1 === result2); |
| 60 else |
| 61 assert_false(result1 === result2); |
| 62 }, "Test repeated sync requests using verb '" + verb + " with " + query_
kinds[j].name); |
| 63 } |
| 64 } |
| 65 </script> |
| 66 </body> |
| 67 </html> |
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Chromium Code Reviews
Issue 59043006:
Avoid reusing XMLHttpRequest resources during document load. (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master