Reload browser window after POST without prompting user to resend POST data

Question

When a user visits my website there is a  Login  link on every page  Clicking this uses some JavaScript to show an overlay window where the user is prompted for their credentials  After entering these credentials an Ajax call is made to the web server to validate them  if they are valid  an authentication ticket cookie is sent back and the page is reloaded so that any content on the page that is specific to authenticated users or the  now  currently logged in user is displayed   I am accomplishing the page reload via script using   window location reload      This works wonderfully for pages loaded via a GET request  the vast majority   but some pages use postback forms  So if a user goes to one of these pages  performs a postback  and then chooses to login  when the window location reload   script runs they are prompted with the dialog box asking if they want to resubmit the POST body     I thought to get around this I could just tell the browser to reload the page  so I tried   window location href   window location href    But the browser doesn t take any action with the above statement  I presume because it s thinking the new URL is the same as the old  If I change the above to   window location href   window location pathname    It reloads the page  but I lose any querystring parameters   My current workaround is sufficient  but not pretty - in short  I tack on a querystring parameter to the current window location href value and then assign that back to window location href by calling reloadPage  justLoggedIn    where the reloadPage function is   function reloadPage querystringTackon        var currentUrl   window location href       if  querystringTackon    null  amp  amp  querystringTackon length  gt  0  amp  amp  currentUrl indexOf querystringTackon   lt  0            if  currentUrl indexOf       lt  0              currentUrl          querystringTackon          else             currentUrl      amp     querystringTackon             window location href   currentUrl      This works  but it results in the URL being www example com SomeFolder SomePage aspx justLoggedIn  which seems tacky   Is there a way in JavaScript to get it to do a GET reload and not prompt the user to resubmit the POST data  I need to make sure that any existing querystring parameters are not lost

User · Answer

window location href   window location href    Don t ask my why it works  but it does      Just the way the js engine interprets the logic I suppose

User · Answer

This worked for me   window location   window location pathname   Tested on    Chrome 44 0 2403 IE edge Firefox 39 0

User · Answer

You can take advantage of the HTML prompt to unload mechanism  by specifying no unload handler   window onbeforeunload   null  window location replace URL     See the notes section of the WindowEventHandlers onbeforeunload for more information

User · Answer

This works too   window location href   window location pathname   window location search

User · Answer

This can be solved also with POST REDIRECT GET pattern  Which is more elegant  How do I reload a page without a POSTDATA warning in Javascript

User · Answer

You could try to create an empty form  method get  and submitting it    lt form id  reloader  method  get  action  enter url here  gt   lt  form gt   lt script gt     to reload the page  try document getElementById  reloader   submit     lt  script gt

User · Answer

When we want to refresh the parent page from the child page without any prompt   Here is the code   window opener location href   window opener location   This simply refreshes the parent page without any prompt

User · Answer

Use   RefreshForm submit       instead of   document location reload true

User · Answer

This worked   lt button onclick  window location href window location href  return false   gt Continue lt  button gt    The reason it doesn t work without the return false  is that the button click would trigger a form submit  With an explicit return false on it  it doesn t do the form submit and just does the reload of the same page that was a result of a previous POST to that page

User · Answer

If you have hashes     in your URL  all the solutions here do not work  This is the only solution that worked for me    var hrefa   window location href split      1   var hrefb   window location href split      2   window location href    window location pathname    window location search     amp x x     hrefa         hrefb    The URL has to be different for it to reload if you have a hash  The  amp x x does that here  Just substitute this for something you can ignore  THis is abit of a hack  unable to find a better solution     Tested in Firefox

User · Answer

I had the same problem as you   Here s what I did  dynamically generated GET form with action set to location href  hidden input with fresh value   and it seems to work in all browsers   var elForm document createElement  form    elForm setAttribute  method    get    elForm setAttribute  action   window location href    var elInputHidden document createElement  input    elInputHidden setAttribute  type    hidden    elInputHidden setAttribute  name    r    elInputHidden setAttribute  value   new Date   getTime     elForm appendChild elInputHidden    if window location href indexOf      gt  0        var  arrNameValue      var strRequestVars window location href substr window location href indexOf      1       var  arrRequestVariablePairs strRequestVars split   amp         for var i 0  i lt  arrRequestVariablePairs length  i                   arrNameValue  arrRequestVariablePairs i  split                elInputHidden document createElement  input            elInputHidden setAttribute  type    hidden            elInputHidden setAttribute  name   decodeURIComponent  arrNameValue shift              elInputHidden setAttribute  value   decodeURIComponent  arrNameValue join                 elForm appendChild elInputHidden            document body appendChild elForm   elForm submit

User · Answer

To reload opener window with all parameters  not all be sent with window location href method and method with form submit   is maybe one step to late  i prefer to use window history method   window opener history go 0

User · Answer

What you probably need to do is redirect the user after the POST   Form Handler script has been ran   In PHP this is done like so      lt  php        Handle   POST data  maybe insert it into a database     Ok    POST data has been handled  redirect the user header  Location success php    die      gt        this should allow you to refresh the page without getting that  Send Data Again  warning   You can even redirect to the same page  if that s what you re posting to  as the POST variables will not be sent in the headers  and thus not be there to re-POST on refresh

User · Answer

This is an older post  but I do have a better solution   Create a form containing all of your post values as hidden fields and give the form a name such as    lt form name  RefreshForm  method  post  action  http   yoursite yourscript  gt       lt input type  hidden  name  postVariable  value  PostData  gt   lt  form gt    Then all you need to do in your setTimeout is RefreshForm submit     Cheers

[javascript] Reload browser window after POST without prompting user to resend POST data

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