Browser back button is not working in Blazor web-server - browser

I want to go previous page when the user clicks on the browser back button. When I navigate another page, I can not go to the last page by using the browser back button. So, can anyone help me find a solution to this problem?

Ensure that every state that you want to show up in next/back is differentiated by a route change navigated to by NavigationManager.
If you make a page /somePage and you let the user step through several choices, and then the user navigates (using the URL bar) then hits the back button on the browser, they will go back to /somePage and not back to the choices they made.
If you make a page /somePage and each time the user makes a choice they are navigated to a new page using NavigationManager, for example /somePage/someSelection, then when they hit back they will go back to /somePage/someSelection. This requires you to load data on subpage choices on init based on optional page route parameters, but the tradeoff is having browser navigations that are part of next/back.

Related

After clicking Browser back button, BeforePageLoad-Code not run

My problem is that after clicking the Browser back button the code in the BeforePagesLoad-Event not triggered. There is a function to get set an object in a manged bean.
I dry to set the cache control to no-store but that don't work. the-order-of-events-in-xpages
Is there a way to trigger a event after clicking the browser back button?
I am no x-pages expert, but it looks to be a server side technology, meaning that a server call must be made in order for the code to run.
The first thread is a solution for forcing a page reload via cookies, while the second involves javascript/jquery. The second also may touch on some cache control of different browsers.
Force a page refresh when page visited from back button
Is there a cross-browser onload event when clicking the back button?

Prevent direct access to some page in JSF

I want to restrict direct access to certain page in my application. Those pages can only be accessible if the user is redirected to those pages by the application.
All the redirections are done via ExternalContext#redirect(url) method.
User can use back and forward button, also can refresh the page by pressing F5 or via browser's refresh button. What I want is user cannot save, or bookmark URLs of some page, also cannot copy those redistricted URL and paste and go via address bar of the browser.
Followings are the cases:
Say, I have Page-A and Page-B.
Redirection is done to Page-B from Page-A.
User can go back to Page-A and can come again to Page-B by using browser's back and forward button.
User can refresh Page-B and he/she will stay in Page-B.
User CANNOT copy the URL of Page-B and access it later time (in new tab or by bookmarking).
Is it feasible? Any pointer would be very helpful to me.
I don't think you can do all that from JSF.
Your obvious alternative is to use Javascript.
I never herd a concept of disabling Bookmark option in Browser using Javascript. However you can always disable the address field if you open the page in new Window.
You can solve it with
JSF Navigation Handler - set a session attribute from some previous page and expire the value after some time with a timer. From the Handler impl check the value of the attribute and restrict access e.g. redirect to some other page in case the value is not present.
You can achieve similar behaviour with web frameworks. Enforcing controlled navigation is a basic feature in most WEB FXs e.g. JBoss Seam conversations or Spring Web Flow controlled navigation implementations.

Browser back button navigation

Whenever browser back is clicked, it must not navigate to the previous page but to some default page. how is it done using JSF ?
Clicking on browser back button requests the result page from the browser cache.
This is a client side activity. It doesn't send request to your server for fetching some default page(in your case).
Please refer this post for writing a filter indicating the browser not to cache dynamic JSF pages.
And also you can refer this one for more details.
You can try to detect if User has clicked on browser back button by writing client side code.
Refer this post for detecting back button click.
If you are trying to alter the behaviour of browser back button, it indicates some kind of flaw in your application.

Controlling the behavior of the Browsers Back Button

We created an E-Newsletter for a client that includes lots of story links as well as banner adds. The majority of users are reading the newsletter in MS Outlook. The client thinks users will get confused when they click on a link from the newsletter and it opens in their browser and then the user can't hit the browser's back button in order to get back to the newsletter.
What are my options?
Is it possible to control where the Browsers back button takes the user? I would guess not for security reasons.
If I have the newsletter links go through our main site and then redirect to the desired page (story or ad), can I do it in such a way that the back button will work and won't result in the user being redirected back to the redirect page?
Is there a better approach?
Overall, the back and forward buttons step the user through the history and for security reasons, there is very little you can do about that. But ...
You do have a certain amount of control over the history. In particular, page 1 can say "go to page 2", and once the user is on page 2, the back button will return the user to page 1 OR page 1 can say "replace me in history with page 2"; then once the user is on page 2, the back button will return the user whatever was before page 1, if anything. This is a good way to Orwell redirect pages right out of memory.
See here for details.

Skip location from being pushed to the browser navigation history stack

Assuming the following scenario:
User is on product list page
Clicks a product and is redirected to the product detail page
Clicks on purchase button
POST /products/1/purchase/ is executed and redirects back to product detail page
User clicks back button
POST /products/1/purchase/ is executed again (FAIL! it should have been redirected to product list page)
How would you solve the back button problem?
Is there any response code that forces the browser to skip the location from history stack?
Assuming I can implement my own back button, how would you implement it?
Manually tracking the history, client-side
Manually tracking the history, server-side
Setting checkpoints and redirecting back to the checkpoint in case of existence
See:
Back button re-submit form data ($_POST)

Resources