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When an error is encountered, this variable will contain the method to use for the “back” button (“GET” or “POST”) and it's will be available from the /error/ page
<#if condition="'<#error_btn_back_url>' <> ''"> <br /> <#if condition="'<#error_btn_back_method>' = 'POST'"> <form action="<#error_btn_back_url>" method="post" name="ak_back_form" class="form1"> <#for var="i" from="0" to="<#error_btn_back_post_params.count> - 1"> <input type="hidden" name="<#error_btn_back_post_params.Names[<#i>]>" value="<#error_btn_back_post_params.ValueFromIndex[<#i>]>" /> <#endfor> </form> <#htmlbutton template="button_4_1_2.html" href="javascript:void(0);" onclick="document.forms['ak_back_form'].submit(); return false;" caption="Previous"> <#else> <#htmlbutton template="button_4_1_2.html" href="<#error_btn_back_url>" caption="Previous"> <#endif> <#endif>