Added experimental workarounds for IE11; Added new example
This commit is contained in:
parent
eb349648bd
commit
30c595de6e
4 changed files with 55 additions and 26 deletions
|
@ -8,7 +8,7 @@ This is a very lightweight Speedtest implemented in Javascript, using XMLHttpReq
|
|||
[Take a Speedtest](http://speedtest.fdossena.com)
|
||||
|
||||
## Compatibility
|
||||
Only modern browsers are supported (Edge 12+)
|
||||
Only modern browsers are supported (IE11, latest Edge, latest Chrome, latest Firefox, latest Safari)
|
||||
|
||||
## Requirements
|
||||
- A reasonably fast web server. PHP is optional but recommended (see doc.pdf for details)
|
||||
|
|
BIN
doc.pdf
BIN
doc.pdf
Binary file not shown.
|
@ -211,12 +211,16 @@ function dlTest(done){
|
|||
}.bind(this),200);
|
||||
}
|
||||
//upload test, calls done function whent it's over
|
||||
//garbage data for upload test (1mb of random bytes repeated 20 times, for a total of 20mb)
|
||||
//garbage data for upload test
|
||||
var r=new ArrayBuffer(1048576);
|
||||
try{r=new Float32Array(r);for(var i=0;i<r.length;i++)r[i]=Math.random();}catch(e){}
|
||||
var req=[];
|
||||
var req=[],reqsmall=[];
|
||||
for(var i=0;i<20;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=false; //used to prevent multiple accidental calls to ulTest
|
||||
function ulTest(done){
|
||||
if(ulCalled) return; else ulCalled=true; //ulTest already called?
|
||||
|
@ -231,6 +235,30 @@ function ulTest(done){
|
|||
var prevLoaded=0; //number of bytes transmitted last time onprogress was called
|
||||
var x=new XMLHttpRequest();
|
||||
xhr[i]=x;
|
||||
var ie11workaround;
|
||||
try{
|
||||
xhr[i].upload.onprogress;
|
||||
ie11workaround=false;
|
||||
}catch(e){
|
||||
ie11workaround=true;
|
||||
}
|
||||
if(ie11workaround){
|
||||
//IE11 workarond: xhr.upload does not work properly, therefore we send a bunch of small 256k requests and use the onload event as progress. This is not precise, especially on fast connections
|
||||
xhr[i].onload=function(){
|
||||
totLoaded+=262144;
|
||||
testStream(i,0);
|
||||
}
|
||||
xhr[i].onerror=function(){
|
||||
//error, abort
|
||||
failed=true;
|
||||
try{xhr[i].abort();}catch(e){}
|
||||
delete(xhr[i]);
|
||||
}
|
||||
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)
|
||||
xhr[i].send(reqsmall);
|
||||
}else{
|
||||
//REGULAR version, no workaround
|
||||
xhr[i].upload.onprogress=function(event){
|
||||
if(testStatus!=3){try{x.abort();}catch(e){}} //just in case this XHR is still running after the upload test
|
||||
//progress event, add number of new loaded bytes to totLoaded
|
||||
|
@ -240,7 +268,7 @@ function ulTest(done){
|
|||
prevLoaded=event.loaded;
|
||||
}.bind(this);
|
||||
xhr[i].upload.onload=function(){
|
||||
//this stream sent all 20mb of garbage data, start again
|
||||
//this stream sent all the garbage data, start again
|
||||
testStream(i,0);
|
||||
}.bind(this);
|
||||
xhr[i].upload.onerror=function(){
|
||||
|
@ -253,6 +281,7 @@ function ulTest(done){
|
|||
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)
|
||||
xhr[i].send(req);
|
||||
}
|
||||
}.bind(this),1);
|
||||
}.bind(this);
|
||||
//open streams
|
||||
|
|
2
speedtest_worker.min.js
vendored
2
speedtest_worker.min.js
vendored
File diff suppressed because one or more lines are too long
Loading…
Reference in a new issue