javascript - "Unable to load http://url status:0" error in onbeforeunload-method -

may of can me find problem?

i've got xpage client-side js-code included should executed when decide leave page. in client-side js refer button , click automatically. button got server-side js code included , change flag document ("opened ..." "").

the thing somehow client-side js did not work in different browsers except current ie (10.0.5) , throws error:

unable load http://urlofthedocument/... status:0 

the funny thing is, when insert alert()-method right after click()-method works fine in every browser. don't want include alert statement figure out there must different avoid this. (a short pause instead of alert-method did not work.)

my cs js-code:

window.onbeforeunload = warneditmode;  function warneditmode(){     if(needunloadconfirm == true){         var el = window.document.getelementbyid("#{id:hidden4ssjs}");         el.click();         //document.open();         //document.write(el);         //document.close();         //alert("you're leave page");         //pause(5000);      } }  function pause(millis){     var date = new date();     var curdate = null;     { curdate = new date(); }     while(curdate-date < millis) } 

this refers to button, executes following ss js code, after clicked:

try{     print("hidden4ssjs-button-test @ person");     var db:notesdatabase = database;     var agt:notesagent;     var doc:notesdocument = xppersondoc.getdocument()      agt = db.getagent("(xpunlockdocument)");     agt.run(doc.getnoteid()); }catch(e){     _dump(e); } 

may guys can me this?

i using xsp object hidden computed field (and not special button)...

something this:

function warneditmode(){    if(needunloadconfirm == true){       xsp.partialrefreshget("#{id:unlockdoccf1}", {          params: {             '$$xspsubmitvalue': 'needtounlock'          },          oncomplete: function () {             alert('you leave page , document has been unlocked.');          },          onerror : function (e) {             alert('you leave page , document has not been unlocked.\n' + e);          }       );    }   pause(5000); } 

then computed field's javascript this:

try{     var sval = @explode(context.getsubmittedvalue(), ',');     if (sval == null) return result + " no action.";     if (!"needtounlock".equals(sval[0])) return result + " no action.";      print("hidden4ssjs-button-test @ person");     var db:notesdatabase = database;     var agt:notesagent;     var doc:notesdocument = xppersondoc.getdocument()      agt = db.getagent("(xpunlockdocument)");     agt.run(doc.getnoteid());     return 'document unlocked.'; }catch(e){     _dump(e); }