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Commit 710887f4 authored by dosse91's avatar dosse91
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Added options for managing errors during test (abort/retry/ignore)

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doc.md
View file @ 710887f4
# HTML5 Speedtest
> by Federico Dossena
> Version 4.2.1, May 15 2017
> Version 4.2.2, June 13 2017
> [https://github.com/adolfintel/speedtest/](https://github.com/adolfintel/speedtest/)
......@@ -164,6 +164,12 @@ w.postMessage('start {"param1": "value1", "param2": "value2", ...}')
* Recommended: `>=1`
* Default override: 1 on Firefox if enable_quirks is true
* Default override: 10 on Safari if enable_quirks is true
* __xhr_ignoreErrors__: how to react to errors in download/upload streams and the ping test
* `0`: Fail test on error (behaviour of previous versions of this test)
* `1`: Restart a stream/ping when it fails
* `2`: Ignore all errors
* Default: `1`
* Recommended: `1`
* __allow_fetchAPI__: allow the use of Fetch API for the download test instead of regular XHR. Experimental, not recommended.
* Default: `false`
* __force_fetchAPI__: forces the use of Fetch API on all browsers that support it
......@@ -182,7 +188,7 @@ w.postMessage('abort')
This will terminate all network activity and stop the worker.
__Important:__ do not simply kill the worker while it's running, as it will leave pending XHR requests!
__Important:__ do not simply kill the worker while it's running, as it may leave pending XHR requests!
## Using the test without PHP
......
speedtest_worker.js
View file @ 710887f4
/*
HTML5 Speedtest v4.2.1
HTML5 Speedtest v4.2.2
by Federico Dossena
https://github.com/adolfintel/speedtest/
GNU LGPLv3 License
......@@ -24,6 +24,7 @@ var settings = {
url_getIp: 'getIP.php', // path to getIP.php relative to this js file, or a similar thing that outputs the client's ip
xhr_dlMultistream: 10, // number of download streams to use (can be different if enable_quirks is active)
xhr_ulMultistream: 3, // number of upload streams to use (can be different if enable_quirks is active)
xhr_ignoreErrors: 1, // 0=fail on errors, 1=attempt to restart a stream if it fails, 2=ignore all errors
xhr_dlUseBlob: false, // if set to true, it reduces ram usage but uses the hard drive (useful with large garbagePhp_chunkSize and/or high xhr_dlMultistream)
garbagePhp_chunkSize: 20, // size of chunks sent by garbage.php (can be different if enable_quirks is active)
enable_quirks: true, // enable quirks for specific browsers. currently it overrides settings to optimize for specific browsers, unless they are already being overridden with the start command
......@@ -180,10 +181,11 @@ function dlTest (done) {
testStream(i, 0)
}.bind(this)
xhr[i].onerror = function () {
// error, abort
failed = true
// error
if (settings.xhr_ignoreErrors === 0) failed=true //abort
try { xhr[i].abort() } catch (e) { }
delete (xhr[i])
if (settings.xhr_ignoreErrors === 1) testStream(i, 100) //restart stream after 100ms
}.bind(this)
// send xhr
try { if (settings.xhr_dlUseBlob) xhr[i].responseType = 'blob'; else xhr[i].responseType = 'arraybuffer' } catch (e) { }
......@@ -251,9 +253,10 @@ function ulTest (done) {
}
xhr[i].onerror = function () {
// error, abort
failed = true
if (settings.xhr_ignoreErrors === 0) failed = true //abort
try { xhr[i].abort() } catch (e) { }
delete (xhr[i])
if (settings.xhr_ignoreErrors === 1) testStatus(i,100); //restart stream after 100ms
}
xhr[i].open('POST', settings.url_ul + '?r=' + Math.random(), true) // random string to prevent caching
xhr[i].setRequestHeader('Content-Encoding', 'identity') // disable compression (some browsers may refuse it, but data is incompressible anyway)
......@@ -273,10 +276,10 @@ function ulTest (done) {
testStream(i, 0)
}.bind(this)
xhr[i].upload.onerror = function () {
// error, abort
failed = true
if (settings.xhr_ignoreErrors === 0) failed=true //abort
try { xhr[i].abort() } catch (e) { }
delete (xhr[i])
if (settings.xhr_ignoreErrors === 1) testStream(i, 100) //restart stream after 100ms
}.bind(this)
// send xhr
xhr[i].open('POST', settings.url_ul + '?r=' + Math.random(), true) // random string to prevent caching
......@@ -337,10 +340,18 @@ function pingTest (done) {
}.bind(this)
xhr[0].onerror = function () {
// a ping failed, cancel test
if (settings.xhr_ignoreErrors === 0) { //abort
pingStatus = 'Fail'
jitterStatus = 'Fail'
clearRequests()
done()
}
if (settings.xhr_ignoreErrors === 1) doPing() //retry ping
if(settings.xhr_ignoreErrors === 2){ //ignore failed ping
i++
if (i < settings.count_ping) doPing(); else done() // more pings to do?
}
}.bind(this)
// sent xhr
xhr[0].open('GET', settings.url_ping + '?r=' + Math.random(), true) // random string to prevent caching
......
speedtest_worker.min.js
View file @ 710887f4
function clearRequests(){if(xhr){for(var i=0;i<xhr.length;i++){if(useFetchAPI)try{xhr[i].cancelRequested=!0}catch(e){}try{xhr[i].onprogress=null,xhr[i].onload=null,xhr[i].onerror=null}catch(e){}try{xhr[i].upload.onprogress=null,xhr[i].upload.onload=null,xhr[i].upload.onerror=null}catch(e){}try{xhr[i].abort()}catch(e){}try{delete xhr[i]}catch(e){}}xhr=null}}function getIp(done){xhr=new XMLHttpRequest,xhr.onload=function(){clientIp=xhr.responseText,done()},xhr.onerror=function(){done()},xhr.open("GET",settings.url_getIp+"?r="+Math.random(),!0),xhr.send()}function dlTest(done){if(!dlCalled){dlCalled=!0;var totLoaded=0,startT=(new Date).getTime(),failed=!1;xhr=[];for(var testStream=function(i,delay){setTimeout(function(){if(1===testStatus)if(useFetchAPI)xhr[i]=fetch(settings.url_dl+"?r="+Math.random()+"&ckSize="+settings.garbagePhp_chunkSize).then(function(response){var reader=response.body.getReader(),consume=function(){return reader.read().then(function(result){return result.done?testStream(i):(totLoaded+=result.value.length,xhr[i].cancelRequested&&reader.cancel()),consume()}.bind(this))}.bind(this);return consume()}.bind(this));else{var prevLoaded=0,x=new XMLHttpRequest;xhr[i]=x,xhr[i].onprogress=function(event){if(1!==testStatus)try{x.abort()}catch(e){}var loadDiff=event.loaded<=0?0:event.loaded-prevLoaded;isNaN(loadDiff)||!isFinite(loadDiff)||0>loadDiff||(totLoaded+=loadDiff,prevLoaded=event.loaded)}.bind(this),xhr[i].onload=function(){try{xhr[i].abort()}catch(e){}testStream(i,0)}.bind(this),xhr[i].onerror=function(){failed=!0;try{xhr[i].abort()}catch(e){}delete xhr[i]}.bind(this);try{settings.xhr_dlUseBlob?xhr[i].responseType="blob":xhr[i].responseType="arraybuffer"}catch(e){}xhr[i].open("GET",settings.url_dl+"?r="+Math.random()+"&ckSize="+settings.garbagePhp_chunkSize,!0),xhr[i].send()}}.bind(this),1+delay)}.bind(this),i=0;i<settings.xhr_dlMultistream;i++)testStream(i,100*i);interval=setInterval(function(){var t=(new Date).getTime()-startT;if(!(200>t)){var speed=totLoaded/(t/1e3);dlStatus=(8*speed/925e3).toFixed(2),(t/1e3>settings.time_dl||failed)&&((failed||isNaN(dlStatus))&&(dlStatus="Fail"),clearRequests(),clearInterval(interval),done())}}.bind(this),200)}}function ulTest(done){if(!ulCalled){ulCalled=!0;var totLoaded=0,startT=(new Date).getTime(),failed=!1;xhr=[];for(var testStream=function(i,delay){setTimeout(function(){if(3===testStatus){var prevLoaded=0,x=new XMLHttpRequest;xhr[i]=x;var ie11workaround;try{xhr[i].upload.onprogress,ie11workaround=!1}catch(e){ie11workaround=!0}ie11workaround?(xhr[i].onload=function(){totLoaded+=262144,testStream(i,0)},xhr[i].onerror=function(){failed=!0;try{xhr[i].abort()}catch(e){}delete xhr[i]},xhr[i].open("POST",settings.url_ul+"?r="+Math.random(),!0),xhr[i].setRequestHeader("Content-Encoding","identity"),xhr[i].send(reqsmall)):(xhr[i].upload.onprogress=function(event){if(3!==testStatus)try{x.abort()}catch(e){}var loadDiff=event.loaded<=0?0:event.loaded-prevLoaded;isNaN(loadDiff)||!isFinite(loadDiff)||0>loadDiff||(totLoaded+=loadDiff,prevLoaded=event.loaded)}.bind(this),xhr[i].upload.onload=function(){testStream(i,0)}.bind(this),xhr[i].upload.onerror=function(){failed=!0;try{xhr[i].abort()}catch(e){}delete xhr[i]}.bind(this),xhr[i].open("POST",settings.url_ul+"?r="+Math.random(),!0),xhr[i].setRequestHeader("Content-Encoding","identity"),xhr[i].send(req))}}.bind(this),1)}.bind(this),i=0;i<settings.xhr_ulMultistream;i++)testStream(i,100*i);interval=setInterval(function(){var t=(new Date).getTime()-startT;if(!(200>t)){var speed=totLoaded/(t/1e3);ulStatus=(8*speed/925e3).toFixed(2),(t/1e3>settings.time_ul||failed)&&((failed||isNaN(ulStatus))&&(ulStatus="Fail"),clearRequests(),clearInterval(interval),done())}}.bind(this),200)}}function pingTest(done){if(!ptCalled){ptCalled=!0;var prevT=null,ping=0,jitter=0,i=0,prevInstspd=0;xhr=[];var doPing=function(){prevT=(new Date).getTime(),xhr[0]=new XMLHttpRequest,xhr[0].onload=function(){if(0===i)prevT=(new Date).getTime();else{var instspd=((new Date).getTime()-prevT)/2,instjitter=Math.abs(instspd-prevInstspd);1===i?ping=instspd:(ping=.9*ping+.1*instspd,jitter=instjitter>jitter?.2*jitter+.8*instjitter:.9*jitter+.1*instjitter),prevInstspd=instspd}pingStatus=ping.toFixed(2),jitterStatus=jitter.toFixed(2),i++,i<settings.count_ping?doPing():done()}.bind(this),xhr[0].onerror=function(){pingStatus="Fail",jitterStatus="Fail",clearRequests(),done()}.bind(this),xhr[0].open("GET",settings.url_ping+"?r="+Math.random(),!0),xhr[0].send()}.bind(this);doPing()}}var testStatus=0,dlStatus="",ulStatus="",pingStatus="",jitterStatus="",clientIp="",settings={time_ul:15,time_dl:15,count_ping:35,url_dl:"garbage.php",url_ul:"empty.php",url_ping:"empty.php",url_getIp:"getIP.php",xhr_dlMultistream:10,xhr_ulMultistream:3,xhr_dlUseBlob:!1,garbagePhp_chunkSize:20,enable_quirks:!0,allow_fetchAPI:!1,force_fetchAPI:!1},xhr=null,interval=null,useFetchAPI=!1;this.addEventListener("message",function(e){var params=e.data.split(" ");if("status"===params[0]&&postMessage(testStatus+";"+dlStatus+";"+ulStatus+";"+pingStatus+";"+clientIp+";"+jitterStatus),"start"===params[0]&&0===testStatus){testStatus=1;try{var s=JSON.parse(e.data.substring(5));if("undefined"!=typeof s.url_dl&&(settings.url_dl=s.url_dl),"undefined"!=typeof s.url_ul&&(settings.url_ul=s.url_ul),"undefined"!=typeof s.url_ping&&(settings.url_ping=s.url_ping),"undefined"!=typeof s.url_getIp&&(settings.url_getIp=s.url_getIp),"undefined"!=typeof s.time_dl&&(settings.time_dl=s.time_dl),"undefined"!=typeof s.time_ul&&(settings.time_ul=s.time_ul),"undefined"!=typeof s.enable_quirks&&(settings.enable_quirks=s.enable_quirks),"undefined"!=typeof s.allow_fetchAPI&&(settings.allow_fetchAPI=s.allow_fetchAPI),settings.enable_quirks){var ua=navigator.userAgent;/Firefox.(\d+\.\d+)/i.test(ua)&&(settings.xhr_ulMultistream=1),/Edge.(\d+\.\d+)/i.test(ua)&&(settings.xhr_dlMultistream=3),/Safari.(\d+)/i.test(ua)&&!/Chrome.(\d+)/i.test(ua)&&(settings.xhr_ulMultistream=10,settings.garbagePhp_chunkSize=5),/Chrome.(\d+)/i.test(ua)&&self.fetch&&(settings.allow_fetchAPI&&(useFetchAPI=!0),settings.xhr_dlMultistream=5)}"undefined"!=typeof s.count_ping&&(settings.count_ping=s.count_ping),"undefined"!=typeof s.xhr_dlMultistream&&(settings.xhr_dlMultistream=s.xhr_dlMultistream),"undefined"!=typeof s.xhr_ulMultistream&&(settings.xhr_ulMultistream=s.xhr_ulMultistream),"undefined"!=typeof s.xhr_dlUseBlob&&(settings.xhr_dlUseBlob=s.xhr_dlUseBlob),"undefined"!=typeof s.garbagePhp_chunkSize&&(settings.garbagePhp_chunkSize=s.garbagePhp_chunkSize),"undefined"!=typeof s.force_fetchAPI&&(settings.force_fetchAPI=s.force_fetchAPI),settings.allow_fetchAPI&&settings.force_fetchAPI&&self.fetch&&(useFetchAPI=!0)}catch(e){}console.log(settings),console.log("Fetch API: "+useFetchAPI),getIp(function(){dlTest(function(){testStatus=2,pingTest(function(){testStatus=3,ulTest(function(){testStatus=4})})})})}"abort"===params[0]&&(clearRequests(),interval&&clearInterval(interval),testStatus=5,dlStatus="",ulStatus="",pingStatus="",jitterStatus="")});var dlCalled=!1,r=new ArrayBuffer(1048576);try{r=new Float32Array(r);for(var i=0;i<r.length;i++)r[i]=Math.random()}catch(e){}for(var req=[],reqsmall=[],i=0;20>i;i++)req.push(r);req=new Blob(req),r=new ArrayBuffer(262144);try{r=new Float32Array(r);for(var i=0;i<r.length;i++)r[i]=Math.random()}catch(e){}reqsmall.push(r),reqsmall=new Blob(reqsmall);var ulCalled=!1,ptCalled=!1;
function clearRequests(){if(xhr){for(var i=0;i<xhr.length;i++){if(useFetchAPI)try{xhr[i].cancelRequested=!0}catch(e){}try{xhr[i].onprogress=null,xhr[i].onload=null,xhr[i].onerror=null}catch(e){}try{xhr[i].upload.onprogress=null,xhr[i].upload.onload=null,xhr[i].upload.onerror=null}catch(e){}try{xhr[i].abort()}catch(e){}try{delete xhr[i]}catch(e){}}xhr=null}}function getIp(done){xhr=new XMLHttpRequest,xhr.onload=function(){clientIp=xhr.responseText,done()},xhr.onerror=function(){done()},xhr.open("GET",settings.url_getIp+"?r="+Math.random(),!0),xhr.send()}function dlTest(done){if(!dlCalled){dlCalled=!0;var totLoaded=0,startT=(new Date).getTime(),failed=!1;xhr=[];for(var testStream=function(i,delay){setTimeout(function(){if(1===testStatus)if(useFetchAPI)xhr[i]=fetch(settings.url_dl+"?r="+Math.random()+"&ckSize="+settings.garbagePhp_chunkSize).then(function(response){var reader=response.body.getReader(),consume=function(){return reader.read().then(function(result){return result.done?testStream(i):(totLoaded+=result.value.length,xhr[i].cancelRequested&&reader.cancel()),consume()}.bind(this))}.bind(this);return consume()}.bind(this));else{var prevLoaded=0,x=new XMLHttpRequest;xhr[i]=x,xhr[i].onprogress=function(event){if(1!==testStatus)try{x.abort()}catch(e){}var loadDiff=event.loaded<=0?0:event.loaded-prevLoaded;isNaN(loadDiff)||!isFinite(loadDiff)||0>loadDiff||(totLoaded+=loadDiff,prevLoaded=event.loaded)}.bind(this),xhr[i].onload=function(){try{xhr[i].abort()}catch(e){}testStream(i,0)}.bind(this),xhr[i].onerror=function(){0===settings.xhr_ignoreErrors&&(failed=!0);try{xhr[i].abort()}catch(e){}delete xhr[i],1===settings.xhr_ignoreErrors&&testStream(i,100)}.bind(this);try{settings.xhr_dlUseBlob?xhr[i].responseType="blob":xhr[i].responseType="arraybuffer"}catch(e){}xhr[i].open("GET",settings.url_dl+"?r="+Math.random()+"&ckSize="+settings.garbagePhp_chunkSize,!0),xhr[i].send()}}.bind(this),1+delay)}.bind(this),i=0;i<settings.xhr_dlMultistream;i++)testStream(i,100*i);interval=setInterval(function(){var t=(new Date).getTime()-startT;if(!(200>t)){var speed=totLoaded/(t/1e3);dlStatus=(8*speed/925e3).toFixed(2),(t/1e3>settings.time_dl||failed)&&((failed||isNaN(dlStatus))&&(dlStatus="Fail"),clearRequests(),clearInterval(interval),done())}}.bind(this),200)}}function ulTest(done){if(!ulCalled){ulCalled=!0;var totLoaded=0,startT=(new Date).getTime(),failed=!1;xhr=[];for(var testStream=function(i,delay){setTimeout(function(){if(3===testStatus){var prevLoaded=0,x=new XMLHttpRequest;xhr[i]=x;var ie11workaround;try{xhr[i].upload.onprogress,ie11workaround=!1}catch(e){ie11workaround=!0}ie11workaround?(xhr[i].onload=function(){totLoaded+=262144,testStream(i,0)},xhr[i].onerror=function(){0===settings.xhr_ignoreErrors&&(failed=!0);try{xhr[i].abort()}catch(e){}delete xhr[i],1===settings.xhr_ignoreErrors&&testStatus(i,100)},xhr[i].open("POST",settings.url_ul+"?r="+Math.random(),!0),xhr[i].setRequestHeader("Content-Encoding","identity"),xhr[i].send(reqsmall)):(xhr[i].upload.onprogress=function(event){if(3!==testStatus)try{x.abort()}catch(e){}var loadDiff=event.loaded<=0?0:event.loaded-prevLoaded;isNaN(loadDiff)||!isFinite(loadDiff)||0>loadDiff||(totLoaded+=loadDiff,prevLoaded=event.loaded)}.bind(this),xhr[i].upload.onload=function(){testStream(i,0)}.bind(this),xhr[i].upload.onerror=function(){0===settings.xhr_ignoreErrors&&(failed=!0);try{xhr[i].abort()}catch(e){}delete xhr[i],1===settings.xhr_ignoreErrors&&testStream(i,100)}.bind(this),xhr[i].open("POST",settings.url_ul+"?r="+Math.random(),!0),xhr[i].setRequestHeader("Content-Encoding","identity"),xhr[i].send(req))}}.bind(this),1)}.bind(this),i=0;i<settings.xhr_ulMultistream;i++)testStream(i,100*i);interval=setInterval(function(){var t=(new Date).getTime()-startT;if(!(200>t)){var speed=totLoaded/(t/1e3);ulStatus=(8*speed/925e3).toFixed(2),(t/1e3>settings.time_ul||failed)&&((failed||isNaN(ulStatus))&&(ulStatus="Fail"),clearRequests(),clearInterval(interval),done())}}.bind(this),200)}}function pingTest(done){if(!ptCalled){ptCalled=!0;var prevT=null,ping=0,jitter=0,i=0,prevInstspd=0;xhr=[];var doPing=function(){prevT=(new Date).getTime(),xhr[0]=new XMLHttpRequest,xhr[0].onload=function(){if(0===i)prevT=(new Date).getTime();else{var instspd=((new Date).getTime()-prevT)/2,instjitter=Math.abs(instspd-prevInstspd);1===i?ping=instspd:(ping=.9*ping+.1*instspd,jitter=instjitter>jitter?.2*jitter+.8*instjitter:.9*jitter+.1*instjitter),prevInstspd=instspd}pingStatus=ping.toFixed(2),jitterStatus=jitter.toFixed(2),i++,i<settings.count_ping?doPing():done()}.bind(this),xhr[0].onerror=function(){0===settings.xhr_ignoreErrors&&(pingStatus="Fail",jitterStatus="Fail",clearRequests(),done()),1===settings.xhr_ignoreErrors&&doPing(),2===settings.xhr_ignoreErrors&&(i++,i<settings.count_ping?doPing():done())}.bind(this),xhr[0].open("GET",settings.url_ping+"?r="+Math.random(),!0),xhr[0].send()}.bind(this);doPing()}}var testStatus=0,dlStatus="",ulStatus="",pingStatus="",jitterStatus="",clientIp="",settings={time_ul:15,time_dl:15,count_ping:35,url_dl:"garbage.php",url_ul:"empty.php",url_ping:"empty.php",url_getIp:"getIP.php",xhr_dlMultistream:10,xhr_ulMultistream:3,xhr_ignoreErrors:1,xhr_dlUseBlob:!1,garbagePhp_chunkSize:20,enable_quirks:!0,allow_fetchAPI:!1,force_fetchAPI:!1},xhr=null,interval=null,useFetchAPI=!1;this.addEventListener("message",function(e){var params=e.data.split(" ");if("status"===params[0]&&postMessage(testStatus+";"+dlStatus+";"+ulStatus+";"+pingStatus+";"+clientIp+";"+jitterStatus),"start"===params[0]&&0===testStatus){testStatus=1;try{var s=JSON.parse(e.data.substring(5));if("undefined"!=typeof s.url_dl&&(settings.url_dl=s.url_dl),"undefined"!=typeof s.url_ul&&(settings.url_ul=s.url_ul),"undefined"!=typeof s.url_ping&&(settings.url_ping=s.url_ping),"undefined"!=typeof s.url_getIp&&(settings.url_getIp=s.url_getIp),"undefined"!=typeof s.time_dl&&(settings.time_dl=s.time_dl),"undefined"!=typeof s.time_ul&&(settings.time_ul=s.time_ul),"undefined"!=typeof s.enable_quirks&&(settings.enable_quirks=s.enable_quirks),"undefined"!=typeof s.allow_fetchAPI&&(settings.allow_fetchAPI=s.allow_fetchAPI),settings.enable_quirks){var ua=navigator.userAgent;/Firefox.(\d+\.\d+)/i.test(ua)&&(settings.xhr_ulMultistream=1),/Edge.(\d+\.\d+)/i.test(ua)&&(settings.xhr_dlMultistream=3),/Safari.(\d+)/i.test(ua)&&!/Chrome.(\d+)/i.test(ua)&&(settings.xhr_ulMultistream=10,settings.garbagePhp_chunkSize=5),/Chrome.(\d+)/i.test(ua)&&self.fetch&&(settings.allow_fetchAPI&&(useFetchAPI=!0),settings.xhr_dlMultistream=5)}"undefined"!=typeof s.count_ping&&(settings.count_ping=s.count_ping),"undefined"!=typeof s.xhr_dlMultistream&&(settings.xhr_dlMultistream=s.xhr_dlMultistream),"undefined"!=typeof s.xhr_ulMultistream&&(settings.xhr_ulMultistream=s.xhr_ulMultistream),"undefined"!=typeof s.xhr_dlUseBlob&&(settings.xhr_dlUseBlob=s.xhr_dlUseBlob),"undefined"!=typeof s.garbagePhp_chunkSize&&(settings.garbagePhp_chunkSize=s.garbagePhp_chunkSize),"undefined"!=typeof s.force_fetchAPI&&(settings.force_fetchAPI=s.force_fetchAPI),settings.allow_fetchAPI&&settings.force_fetchAPI&&self.fetch&&(useFetchAPI=!0)}catch(e){}console.log(settings),console.log("Fetch API: "+useFetchAPI),getIp(function(){dlTest(function(){testStatus=2,pingTest(function(){testStatus=3,ulTest(function(){testStatus=4})})})})}"abort"===params[0]&&(clearRequests(),interval&&clearInterval(interval),testStatus=5,dlStatus="",ulStatus="",pingStatus="",jitterStatus="")});var dlCalled=!1,r=new ArrayBuffer(1048576);try{r=new Float32Array(r);for(var i=0;i<r.length;i++)r[i]=Math.random()}catch(e){}for(var req=[],reqsmall=[],i=0;20>i;i++)req.push(r);req=new Blob(req),r=new ArrayBuffer(262144);try{r=new Float32Array(r);for(var i=0;i<r.length;i++)r[i]=Math.random()}catch(e){}reqsmall.push(r),reqsmall=new Blob(reqsmall);var ulCalled=!1,ptCalled=!1;
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