javascript - Break out of 1 frame from within a frame -

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i writing code inside portal. have searched high , low 2 days no luck. portal writing code in, uses iframes, , top frame. when "app" clicked, portal, displays program. without telling long story, have use iframe. page displays iframe take credit card, , listens response of approved or declined. pass return url code in iframe. consequently, when transaction complete, redirected url passed....but in iframe on page. know can use this:

<script language="javascript" type="text/javascript">   function breakout_of_frame()   {     if (top.location != location)     {       top.location.href = document.location.href;     }   } </script>

however code breaks out top frame, taking me out of portal. need break out of frame parent, , not top. have tried changing code using parent, , not work. have used target="_parent" , not work situation. (because i'm not submitting form, i'm sending return url) appreciated.

this answered here how access parent iframe javascript

long story short, use 

parent.document.location

hope useful!


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