Problem with history.pushState when using AJAX

I'm quite new to javascript and history API in particular.

I'm making an AJAX GET request to load next or previous page on a website.

function ajax_get_update(url)

    {

    $.ajax({

        async: true,

        type: "GET",

        url: url,

        cache: true,

        success: function(result){

              sessionStorage.setItem("result", result);

              update_content(result);

            }

    });

    history.pushState(url, url, url)

}

AJAX part and changing page content works perfectly fine. As you can see I'm using history.pushState(url, url, url) to add next page to history so I could use back button to get back to that page.

url looks something like this http://127.0.0.1:8000/?page=2

The problem is if I'd go on page3 from page2 and then to page3 again and so on, history then would contain all these transitions, and when I click on the back button I keep altering back and forth between page2 and page3 few times before I get to the page1 eventually. What I want is page3 -> page2 -> page1 and so on.

How would you solve this problem?

edited Nov 20 at 20:59

asked Nov 20 at 20:35

bloodwithmilk

177112

1

That is how history works :) You could try to move your history.pushState() into the success handler and update the history only on certain cases. I recommend also to update your history only if the ajax request was successful otherwise your application may have an invalid sate.
– gearsdigital
Nov 20 at 20:42

@gearsdigital Good call. Any ideas on how to implement this behaviour page3 -> page2 -> page1 on a back button? Instead of page3->page2->page3->page2...
– bloodwithmilk
Nov 20 at 20:54

Do you have any information about the current page? Other than the url?
– gearsdigital
Nov 20 at 20:55

@gearsdigital not realy... content is unique though
– bloodwithmilk
Nov 20 at 20:58

But parameter is always ?page?
– gearsdigital
Nov 20 at 20:58

|
show 1 more comment

I'm quite new to javascript and history API in particular.

I'm making an AJAX GET request to load next or previous page on a website.

function ajax_get_update(url)

    {

    $.ajax({

        async: true,

        type: "GET",

        url: url,

        cache: true,

        success: function(result){

              sessionStorage.setItem("result", result);

              update_content(result);

            }

    });

    history.pushState(url, url, url)

}

AJAX part and changing page content works perfectly fine. As you can see I'm using history.pushState(url, url, url) to add next page to history so I could use back button to get back to that page.

url looks something like this http://127.0.0.1:8000/?page=2

How would you solve this problem?

edited Nov 20 at 20:59

asked Nov 20 at 20:35

bloodwithmilk

177112

1

That is how history works :) You could try to move your history.pushState() into the success handler and update the history only on certain cases. I recommend also to update your history only if the ajax request was successful otherwise your application may have an invalid sate.
– gearsdigital
Nov 20 at 20:42

@gearsdigital Good call. Any ideas on how to implement this behaviour page3 -> page2 -> page1 on a back button? Instead of page3->page2->page3->page2...
– bloodwithmilk
Nov 20 at 20:54

Do you have any information about the current page? Other than the url?
– gearsdigital
Nov 20 at 20:55

@gearsdigital not realy... content is unique though
– bloodwithmilk
Nov 20 at 20:58

But parameter is always ?page?
– gearsdigital
Nov 20 at 20:58

|
show 1 more comment

I'm quite new to javascript and history API in particular.

I'm making an AJAX GET request to load next or previous page on a website.

function ajax_get_update(url)

    {

    $.ajax({

        async: true,

        type: "GET",

        url: url,

        cache: true,

        success: function(result){

              sessionStorage.setItem("result", result);

              update_content(result);

            }

    });

    history.pushState(url, url, url)

}

AJAX part and changing page content works perfectly fine. As you can see I'm using history.pushState(url, url, url) to add next page to history so I could use back button to get back to that page.

url looks something like this http://127.0.0.1:8000/?page=2

How would you solve this problem?

edited Nov 20 at 20:59

asked Nov 20 at 20:35

bloodwithmilk

177112

I'm quite new to javascript and history API in particular.

I'm making an AJAX GET request to load next or previous page on a website.

function ajax_get_update(url)

    {

    $.ajax({

        async: true,

        type: "GET",

        url: url,

        cache: true,

        success: function(result){

              sessionStorage.setItem("result", result);

              update_content(result);

            }

    });

    history.pushState(url, url, url)

}

AJAX part and changing page content works perfectly fine. As you can see I'm using history.pushState(url, url, url) to add next page to history so I could use back button to get back to that page.

url looks something like this http://127.0.0.1:8000/?page=2

How would you solve this problem?

javascript url url-rewriting html5-history

edited Nov 20 at 20:59

asked Nov 20 at 20:35

bloodwithmilk

177112

edited Nov 20 at 20:59

asked Nov 20 at 20:35

bloodwithmilk

177112

edited Nov 20 at 20:59

asked Nov 20 at 20:35

bloodwithmilk

177112

asked Nov 20 at 20:35

bloodwithmilk

177112

asked Nov 20 at 20:35

bloodwithmilk

177112

1

That is how history works :) You could try to move your history.pushState() into the success handler and update the history only on certain cases. I recommend also to update your history only if the ajax request was successful otherwise your application may have an invalid sate.
– gearsdigital
Nov 20 at 20:42

@gearsdigital Good call. Any ideas on how to implement this behaviour page3 -> page2 -> page1 on a back button? Instead of page3->page2->page3->page2...
– bloodwithmilk
Nov 20 at 20:54

Do you have any information about the current page? Other than the url?
– gearsdigital
Nov 20 at 20:55

@gearsdigital not realy... content is unique though
– bloodwithmilk
Nov 20 at 20:58

But parameter is always ?page?
– gearsdigital
Nov 20 at 20:58

|
show 1 more comment

1

That is how history works :) You could try to move your history.pushState() into the success handler and update the history only on certain cases. I recommend also to update your history only if the ajax request was successful otherwise your application may have an invalid sate.
– gearsdigital
Nov 20 at 20:42

@gearsdigital Good call. Any ideas on how to implement this behaviour page3 -> page2 -> page1 on a back button? Instead of page3->page2->page3->page2...
– bloodwithmilk
Nov 20 at 20:54

Do you have any information about the current page? Other than the url?
– gearsdigital
Nov 20 at 20:55

@gearsdigital not realy... content is unique though
– bloodwithmilk
Nov 20 at 20:58

But parameter is always ?page?
– gearsdigital
Nov 20 at 20:58

That is how history works :) You could try to move your history.pushState() into the success handler and update the history only on certain cases. I recommend also to update your history only if the ajax request was successful otherwise your application may have an invalid sate.
– gearsdigital
Nov 20 at 20:42

@gearsdigital Good call. Any ideas on how to implement this behaviour page3 -> page2 -> page1 on a back button? Instead of page3->page2->page3->page2...
– bloodwithmilk
Nov 20 at 20:54

Do you have any information about the current page? Other than the url?
– gearsdigital
Nov 20 at 20:55

@gearsdigital not realy... content is unique though
– bloodwithmilk
Nov 20 at 20:58

But parameter is always ?page?
– gearsdigital
Nov 20 at 20:58

|
show 1 more comment

1 Answer
1

active

oldest

votes

This is untested but should fit your needs. The idea here is to update the window.history only for newly added urls.

On every successful request we're checking if the current url is present in myState. If not we can assume a new page and update the history and putting the url to our private cache myState.

This will keep your urls in order and prevent duplicated history entries.

Please be aware that this code is using ES2015. You can search the web for polyfills :)

// it is probably not a good idea to keep your own history

let myState = ;



function ajax_get_update(url) {

  $.ajax({

    async: true,

    type: "GET",

    url: url,

    cache: true,

    success: function(result) {

      sessionStorage.setItem("result", result);

      update_content(result);

      update_history(url);

    }

  });

}



function update_history(url) {

  // window.history is only updated when the current url is not

  // saved in our private history

  if (!myState.includes(url)) {

    history.pushState(url, url, url);

    myState.push(url);

  }

}

edited Nov 20 at 21:38

answered Nov 20 at 21:33

gearsdigital

9,27362867

1

developer.mozilla.org/de/docs/Web/JavaScript/Reference/…
– gearsdigital
Nov 20 at 21:37

1

(!state.includes(url)) must be (!myState.includes(url)), right?
– bloodwithmilk
Nov 20 at 21:37

Sure! My bad :) But you got the idea, right?
– gearsdigital
Nov 20 at 21:38

Works perfectly fine. Thank you so much for your time and patience.
– bloodwithmilk
Nov 20 at 21:41

Nah, no problem! Glad it worked for you!
– gearsdigital
Nov 20 at 21:43

add a comment |

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1 Answer
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This is untested but should fit your needs. The idea here is to update the window.history only for newly added urls.

On every successful request we're checking if the current url is present in myState. If not we can assume a new page and update the history and putting the url to our private cache myState.

This will keep your urls in order and prevent duplicated history entries.

Please be aware that this code is using ES2015. You can search the web for polyfills :)

// it is probably not a good idea to keep your own history

let myState = ;



function ajax_get_update(url) {

  $.ajax({

    async: true,

    type: "GET",

    url: url,

    cache: true,

    success: function(result) {

      sessionStorage.setItem("result", result);

      update_content(result);

      update_history(url);

    }

  });

}



function update_history(url) {

  // window.history is only updated when the current url is not

  // saved in our private history

  if (!myState.includes(url)) {

    history.pushState(url, url, url);

    myState.push(url);

  }

}

edited Nov 20 at 21:38

answered Nov 20 at 21:33

gearsdigital

9,27362867

1

developer.mozilla.org/de/docs/Web/JavaScript/Reference/…
– gearsdigital
Nov 20 at 21:37

1

(!state.includes(url)) must be (!myState.includes(url)), right?
– bloodwithmilk
Nov 20 at 21:37

Sure! My bad :) But you got the idea, right?
– gearsdigital
Nov 20 at 21:38

Works perfectly fine. Thank you so much for your time and patience.
– bloodwithmilk
Nov 20 at 21:41

Nah, no problem! Glad it worked for you!
– gearsdigital
Nov 20 at 21:43

add a comment |

This is untested but should fit your needs. The idea here is to update the window.history only for newly added urls.

On every successful request we're checking if the current url is present in myState. If not we can assume a new page and update the history and putting the url to our private cache myState.

This will keep your urls in order and prevent duplicated history entries.

Please be aware that this code is using ES2015. You can search the web for polyfills :)

// it is probably not a good idea to keep your own history

let myState = ;



function ajax_get_update(url) {

  $.ajax({

    async: true,

    type: "GET",

    url: url,

    cache: true,

    success: function(result) {

      sessionStorage.setItem("result", result);

      update_content(result);

      update_history(url);

    }

  });

}



function update_history(url) {

  // window.history is only updated when the current url is not

  // saved in our private history

  if (!myState.includes(url)) {

    history.pushState(url, url, url);

    myState.push(url);

  }

}

edited Nov 20 at 21:38

answered Nov 20 at 21:33

gearsdigital

9,27362867

1

developer.mozilla.org/de/docs/Web/JavaScript/Reference/…
– gearsdigital
Nov 20 at 21:37

1

(!state.includes(url)) must be (!myState.includes(url)), right?
– bloodwithmilk
Nov 20 at 21:37

Sure! My bad :) But you got the idea, right?
– gearsdigital
Nov 20 at 21:38

Works perfectly fine. Thank you so much for your time and patience.
– bloodwithmilk
Nov 20 at 21:41

Nah, no problem! Glad it worked for you!
– gearsdigital
Nov 20 at 21:43

add a comment |

This is untested but should fit your needs. The idea here is to update the window.history only for newly added urls.

On every successful request we're checking if the current url is present in myState. If not we can assume a new page and update the history and putting the url to our private cache myState.

This will keep your urls in order and prevent duplicated history entries.

Please be aware that this code is using ES2015. You can search the web for polyfills :)

// it is probably not a good idea to keep your own history

let myState = ;



function ajax_get_update(url) {

  $.ajax({

    async: true,

    type: "GET",

    url: url,

    cache: true,

    success: function(result) {

      sessionStorage.setItem("result", result);

      update_content(result);

      update_history(url);

    }

  });

}



function update_history(url) {

  // window.history is only updated when the current url is not

  // saved in our private history

  if (!myState.includes(url)) {

    history.pushState(url, url, url);

    myState.push(url);

  }

}

edited Nov 20 at 21:38

answered Nov 20 at 21:33

gearsdigital

9,27362867

This is untested but should fit your needs. The idea here is to update the window.history only for newly added urls.

On every successful request we're checking if the current url is present in myState. If not we can assume a new page and update the history and putting the url to our private cache myState.

This will keep your urls in order and prevent duplicated history entries.

Please be aware that this code is using ES2015. You can search the web for polyfills :)

// it is probably not a good idea to keep your own history

let myState = ;



function ajax_get_update(url) {

  $.ajax({

    async: true,

    type: "GET",

    url: url,

    cache: true,

    success: function(result) {

      sessionStorage.setItem("result", result);

      update_content(result);

      update_history(url);

    }

  });

}



function update_history(url) {

  // window.history is only updated when the current url is not

  // saved in our private history

  if (!myState.includes(url)) {

    history.pushState(url, url, url);

    myState.push(url);

  }

}

edited Nov 20 at 21:38

answered Nov 20 at 21:33

gearsdigital

9,27362867

edited Nov 20 at 21:38

answered Nov 20 at 21:33

gearsdigital

9,27362867

answered Nov 20 at 21:33

gearsdigital

9,27362867

answered Nov 20 at 21:33

gearsdigital

9,27362867

1

developer.mozilla.org/de/docs/Web/JavaScript/Reference/…
– gearsdigital
Nov 20 at 21:37

1

(!state.includes(url)) must be (!myState.includes(url)), right?
– bloodwithmilk
Nov 20 at 21:37

Sure! My bad :) But you got the idea, right?
– gearsdigital
Nov 20 at 21:38

Works perfectly fine. Thank you so much for your time and patience.
– bloodwithmilk
Nov 20 at 21:41

Nah, no problem! Glad it worked for you!
– gearsdigital
Nov 20 at 21:43

add a comment |

1

developer.mozilla.org/de/docs/Web/JavaScript/Reference/…
– gearsdigital
Nov 20 at 21:37

1

(!state.includes(url)) must be (!myState.includes(url)), right?
– bloodwithmilk
Nov 20 at 21:37

Sure! My bad :) But you got the idea, right?
– gearsdigital
Nov 20 at 21:38

Works perfectly fine. Thank you so much for your time and patience.
– bloodwithmilk
Nov 20 at 21:41

Nah, no problem! Glad it worked for you!
– gearsdigital
Nov 20 at 21:43

developer.mozilla.org/de/docs/Web/JavaScript/Reference/…
– gearsdigital
Nov 20 at 21:37

(!state.includes(url)) must be (!myState.includes(url)), right?
– bloodwithmilk
Nov 20 at 21:37

Sure! My bad :) But you got the idea, right?
– gearsdigital
Nov 20 at 21:38

Works perfectly fine. Thank you so much for your time and patience.
– bloodwithmilk
Nov 20 at 21:41

Nah, no problem! Glad it worked for you!
– gearsdigital
Nov 20 at 21:43

add a comment |

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