Our application forbids going back for several reasons.
Basically because that's just how our application works (JSF with facelets as GUI)
You always have to enter on the welcome site, once you chose an application-flow you can only leave / abort when you tell the application (e.g. press a button). If you just browse away e.g. enter "example.com" in the address bar the state of your flow gets saved and once you relogin, you can resume the work. Going back is only possible when it was specifically designed like this with a 'back' submit - button.
Of course users keep pressing the 'back' button (i would do so as well) and they keep getting 'error: session out of synch'. This is a learning process and a couple years ago we just disabled the back-button to make things clear. Sadly this is no longer supported.
So instead of teaching the user the hard way and forcing him to relogin, are there some good alternatives I'm missing?
i found this link which should offer 3 methods to disable the back button - but in reality it just further confirms the fact that it is impossible to do it in a semi-nice way.
when the user tries to go to a previous page you can redirect him to the page he should be at in other words catch the "out of sync" and redirect him
You might find a workable solution here How do I insert an entry into browsing history via JavaScript
by inserting an extra step into the browser's history (perhaps a link to the current page with query string parameters that result in a nice big red box message to the user), or you could try attaching an event handler to the OnBeforeUnload event so the user gets a confirmation dialog when trying to leave the page (you'd want to remove the handler when the submit button was clicked).
Related
I have a web page that gets refreshed, when something happens on any of its children pages. When it happens, the IE pop-up appears with the following message: "To display the webpage again, the web browser needs to resend the information you've previously submitted. If you were making a purchase, you should click Cancel to avoid a duplicate transaction. Otherwise, click Retry to display". See the image attached:
I'm ok with all that, but I was wondering if there's a way to change the actual text of the message, for example, removing the last sentence. I know this pop-up can't be tampered with, but perhaps there's a way to replace it with a custom made pop-up, serving the same function, but showing a different text. I assume first I would have to suppress the original message, then call a confirm box in a beforeupdate function, where clicking OK (for example) would resend the information submitted and Cancel would let you remain on the page without refreshing it. However, my Javascript and JQuery knowledge is a bit rusty and I'm not sure how to implement it properly. Any help is appreciated.
Thank you
My requirement is to display a customized confirm box when the user leaves a page without saving form data.
I used the window.onbeforeunload event it is displaying google chrome related predefined confirm box. When the user changes any form and trying to reload, tab close or route change I want to display a $mdDialog.confirm and asking user to leave the page or stay on the same page. How do I make one?
For security reasons, this cannot be done. You can find more details in the MDN page on the beforeunload event.
In the past, you could return a custom string that was displayed to the user, but these days even that is ignore. The best you can do is instruct the page to show the standard dialog that you already have. (And in some browsers and some scenarios, even that instruction may be ignored.)
An alternative is to include a button in the page for leaving the form. Although that still does not prevent users from navigating away from the page directly, if it is sufficiently visible, in many cases users are more likely to click that than navigating directly. It also serves as a passive reminder that the form needs explicit saving or cancelling (depending on your specific details, of course).
I have created a quiz application in which there are five different pages. I have handled session and prevent back button after login. But I am quite new to javascript, so how to disable the browser forward button. i.e. if the user is in QuizPage1.jsp, he/she should not access forward button in the browser..They have to press the submit button after answering those quizes. I checked many questions in stackoverflow regarding this. But, I found solution for disabling back button only.
So, Your help is highly appreciated. Thanks in Advance.
Forward button is automatically useless if you disable the back button. I don't think the forward button does what you think it does. You can't jump to pages you haven't visited before by using the forward button, so no-one can use it to skip pages (as you seem to think would happen).
Also - do not disable the back button. If I ever see the back button disabled, it is a guaranteed way never to see me on your page again.
I'm looking for the best way to go about "forcing" the user to fill a textarea.
For my work we have a system that keeps track of time spent on a particular "task". Some tasks are required to have a comment while others are optional. At the top of the page there is a timer, a textarea for the comments and a list of different tasks.
So far I have it so when the user tries to stop the timer, it won't stop until the comment is written (if it is required). When the paged is closed while the timer is running, an onbeforeunload function sends an alert warning that the comments aren't filled out and then the "Are you sure you want to leave?" warning pops up.
As far as I can tell there is no way to prevent the user from completely exiting the page. The idea we had was when the user closes the window, have another simple page open that just has a textarea and an instruction telling the user to write a comment. I'm pretty new to JavaScript and web development so I'm not entirely sure the best way to go about this.
Put that text area in a popup or iframe or modal window where you can control its closing.
On these window.close you can call the functions to validate the text area is filled or not.
Am not sure you can put that in a popup or not .but thats the only good way i can think of !!
There is no way to prevent the user from leaving a page.
Built in pop up blockers will also block the system from opening up popup windows onunload. Only way to allow onunload popups is if your system admins can update every browser to add an exception to the browser security settings.
It is impossible to make a web application act like a client application.
I have a simple logon page. When the user is validated, the window navigates to a new page. The javascript is window.open('http://www.google.com',"mytest",'toolbar=no'); My expectation is that when it navigates away from our logon page and opens the google site that the back button would be disabled. But it's not. Does anyone have any idea why?
It depends on your browser. Ultimately, all you can do with javascript's window.open() is tell the browser what you'd like it to do, but it's not obligated to do it. Browsers can and do ignore some directives based on user preferences.
I believe the option your looking for is 'location=no', as that hides the address bar and therefore the back button too. The toolbar is things like favorites/etc.
This is bad practice - what happens if the user has javascript disabled? If the browser prevents the js from removing the toolbar of the main window?
Instead, amend the logon page to detect whether the user is logged in before showing the login form. If logged in, show a message saying so instead of the form - that way, a user clicking back won't be a problem.
I find it very annoying when a website messes around with my browser window, and generally don't come back.
This is what worked for me. Instead of disabling the back key. I listen for on unload event. I then write the following in javascript:
window.onbeforeunload = function () { return "You should not press the back button while in this application. If you continue, your work will not be saved and you will need to log back in."}
Java Script pops a dialogue box with OK and Cancel options. If the user clicks cancel. The application stays right where they are. The script is embedded within the tags. For me this is the ideal solution. I found this at
http://www.hunlock.com/blogs/Mastering_The_Back_Button_With_Javascript