javascript - Iframe src attribute change with parameter -

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i’m trying change src attribute of <iframe> depending if iframe src has /?foo or not.

i had solution:

<script>     jquery(document).ready(function($) {         $('iframe[src*="?foo"]').each(function() {             $('#frame').attr('src', "http://www.example.com/page2");         });     }); </script>  <iframe id="frame" src=„www.example.com/page1/?foo"></iframe>

but problem have no access page, iframe emded can't write code <head> of site.

i have access both pages www.example.com/page1 , www.example.com/page2

i don’t know how need change code manipulate src.. not sure if possible, when have no access page iframe

as seen in how retrieve parameters javascript? can use following code , call function parsesecond("foo") foo parameter on page1. can find more information on question page.

function parsesecond(val) {     var result = "not found",         tmp = [];     var items = location.search.substr(1).split("&");     (var index = 0; index < items.length; index++) {         tmp = items[index].split("=");         if (tmp[0] === val) result = decodeuricomponent(tmp[1]);     }     return result; }

if want redirect page 2 can write following code redirect frame page1 page2 when foo parameter has value equal bar.

if(parsesecond("foo")=="bar"){     window.location="www.example.com/page2"; }

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