javascript - Cannot call method 'appendChild' of null for iframes -


i have following script create iframe

  function createiframe() {     var iframe = document.createelement("iframe");     iframe.style.position = "absolute";     iframe.style.visibility = "hidden";      document.body.appendchild(iframe);      // firefox, opera     if(iframe.contentdocument) iframe.doc = iframe.contentdocument;     // internet explorer     else if(iframe.contentwindow) iframe.doc = iframe.contentwindow.document;      // magic: force creation of body (which null default in ie).     // force styles of visited/not-visted links.     iframe.doc.open();     iframe.doc.write('<style>');     iframe.doc.write("a{color: #000000; display:none;}");        iframe.doc.write("a:visited {color: #ff0000; display:inline;}");         iframe.doc.write('</style>');     iframe.doc.close();      // return iframe: iframe.doc contains iframe.     return iframe;   }

however in chrome console giving me error cannot call method 'appendchild' of null

why not working?

the code correct. have added body in page?

try this:

<html> <body> <script> window.onload=function() {    createiframe() }; function createiframe() {     var iframe = document.createelement("iframe");     iframe.style.position = "absolute";     iframe.style.visibility = "hidden";      document.body.appendchild(iframe);      // firefox, opera     if(iframe.contentdocument) iframe.doc = iframe.contentdocument;     // internet explorer     else if(iframe.contentwindow) iframe.doc = iframe.contentwindow.document;      // magic: force creation of body (which null default in ie).     // force styles of visited/not-visted links.     iframe.doc.open();     iframe.doc.write('<style>');     iframe.doc.write("a{color: #000000; display:none;}");        iframe.doc.write("a:visited {color: #ff0000; display:inline;}");         iframe.doc.write('</style>');     iframe.doc.close();      // return iframe: iframe.doc contains iframe.     return iframe;   }   </script> </body> </html>

iframe.doc.write not cleanest solution....


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