The gov.uk Design System calls this the "Exit a page quickly" pattern [1], with an associated component [2]. It can be activated by clicking the Shift key three times.
There's this nice blog [3] that explains why they chose Shift instead of other keys, and also gives a nice overview of the pattern.
I'm surprised that the blog doesn't mention what, to me, is the most obvious reason not use Esc — because it's conspicuous as all hell! If somebody's at risk and wants to hide what they're doing, their abuser seeing them repeatedly hit Esc just screams "I'm trying to hide something".
Was this a shared memory, specifically with regard to Sticky Keys and Return to Castle Wolfenstein? I thought it was a unique problem with me and my friends lol
> Create a page to explain Exit this page to users.
> You must show this page after the start point of your service, but before the page where the user will see the Exit this page button for the first time.
> On longer services, you might need more than one interruption page.
(a class="quickBrowserEscape ..." target="_blank" href="https://www.google.ca/") Need to leave site for your safety? Quick Escape
$('.quickBrowserEscape').on('click', function () {
document.body.style.opacity = 0;
document.title = 'New Tab';
window.open('https://www.weather.gc.ca/canada_e.html', '_blank');
window.location.replace($('.quickBrowserEscape').attr('href')); // removes current page session DOES NOT WORK IN IE
return false;
});
Would recommend picking random URLs from an array.
Best would be if they took care to match the overall brightness of the page they redirect to.
Currently they're going from a "not 100% bright website" to "very much 100% bright website" and the flash in people's faces will be relatively obvious, if the other person been trying to hide websites themselves. I've heard.
This would also leave intact cookies, local/session storage, indexeddb, caches. All of which abusers do actually check, when controlling their victims.
A quick check shows that they don't store anything as cookies or any other browser storage.
The thing that still works is the back button after the redirection to Google, and you can still un-close the tab with Ctr-Shf-T which pops the Google page with back history intact. They have "cache-control: max-age=0" which probably should be changed to "cache-control: no-store". Still, the back button has the history if the user clicked links. Improvements could be:
- Recommend the usage of incognito mode.
- Blank the page immediately with "document.body.innerHTML=''" before the page replacement, as the replacement alone can have a delay and the abuser could see a glimpse of the police page. Blanking is immediate.
Have fun exploring the list of things we've caught abusers actually using. [0] Or don't. Reading and keeping your soul intact aren't compatible.
I am 100% sure that some do, thanks to firsthand life. And any doing it, is enough to get people dead, even if 99% don't. And yes, CS majors can be abusers, too.
Thank You for that. The popup, the monitor icon, being implemented as an iframe popup seems actually effective against browser history and cookies, sessisons, etc. I guess much better then Vancouver PD implementation.
It’s been a very long time, but as I recall MS recommendations for AD domains and dns collisions changed multiple times. Used to be real problems if you had overlap.
I've implemented quick exit/escape buttons for a few organisations over the years and have spent a bit of time thinking about the limitations.
This pattern is definitely better than most and it is refreshing seeing they put some resources into it. In my professional experience, organisations often chose the "a link to another site like google is fine" option to save money and time while still getting to boast about their security culture.
One thing I have not found much research on however, but would love to hear about, is the effect of these kinds of patterns on the user's speed and choice of actions and how that effects outcomes. What I mean by that is, say someone is visiting the site on their phone and an adversary walks into the room. Most people these days know the fastest way to leave a page at short notice - maybe the home button/gesture, maybe swipe to another open app. Does having a big red button that introduces a new choice help them, or add to the cognitive bandwidth needed to handle the situation?
Remember, by definition the type of situations that this component is intended to help with are going to be stressful and likely have little to no warning; the person is going to walk in the room and the user has moments to act.
What is going to lead to measurably better outcomes; a big red button that the user needs to read, understand and move their finger/hand to, or their own knowledge of their own device's most efficient escape mechanisms?
This isn't meant as a criticism of the component. I am just genuinely curious as to what the best tool to assist folks in this situation is? We are talking about real people with real fears and the possibility of very bad outcomes.
It doesn't seem to work in Safari on iPhone correctly. When I click on the Back button (from weather.gc.ca), it goes back to the Vancouver PD site. Therefore I do not think that it is built well.
This feature could be potentially be activated whenever the page is hidden (eg. by pressing the home button), although it would be very annoying for regular users.
Indeed this is mostly performative by the police because the user would switch apps, turn off the phone screen, or any other easier way as you describe.
Because people who need help from the police and have to hide their tracks might not be completely technically literate. Or indeed fully literate at all.
The Trevor Project (LGBTQ support/suicide prevention site) has the same thing, triggered by a hotkey (press ESC three times). https://www.thetrevorproject.org/
I like that this treats as a UX problem not just a technical one.
The challenge is making sure people know the feature exists before they need it. An escape mechanism isn't very useful if you only discover it after you're already in a stressful situation.
What's weird is with Firefox for Android it's so difficult erasing a site from being remembered. Once visited, in my experience, even after deleting the history entry and last closed tabs item it still auto completes the domain in the addressbar (when it didn't before) and the only workaround is a full history wipe (since the Android version offers no granular timeframe like the desktop version).
So if accidentally clicking some link from some other app that auto opens the default browser it's a PITA to get FF for Android to forget about it.
Isn't this exactly why browsers implemented "private mode"?
Why don't they inform users about how to properly use private mode, which works with any website, instead of rolling their own solution, which the user has to learn just for that one website?
Private mode assumes you choose in advance. If you are suddenly approached, you can trigger the quick exit without any prior planning and it can be done inconspicuously.
They could be in a situation where that’s not available such as a child’s phone with parental controls or a managed work device that has it locked out.
Smart use of history-wiping and the Shift-three-times pattern from gov.uk shows how thoughtful UX can protect at-risk users. Small details, big safety impact.
I guess gov.uk is in fact the expert at history wiping patterns, especially when it comes to mass gang based violation of thousands of young girls from broken homes that they are complicit in the abuse of for decades.
A quick wipe and that didn’t happen. Works wonders.
Do you mean something you verified is happening or something you assumed is happening? You can go look at the site OP linked and find out what is happening and if it's a "major security issue". In this case, after user click/intervention, it renames the current history entry to "New Tab". This is not a security issue at all.
Well, it’s right there in the headline that the website wipes itself from history, so I don’t need any realignment of my ability to discern what I’ve read from what I’ve imagined. If all the site is doing is renaming itself New Tab then that sure isn’t newsworthy. Maybe a domestic violence reporting site should just name itself something innocuous in general without the quick escape? But nonetheless, a web site replacing its own history entry with something from another domain sure doesn’t sound secure.
Not to start an argument but in lamence terms, renaming history to "New Tab" is as close to wiping history as a website can manage. Concealing, obfuscating, hiding might have been better words but the non technucal audience would not see an issue with the language. Nuance is important, though and i agree its slightly misleading
I just tested it on both iPhone and Android and it does indeed remove itself from history and replaces with a link to a weather domain. That’s incredible that it is allowed and I can trivially think of a way to get someone to get to a fake banking site right now, or for that matter, fill the history with a series of visits to domestic violence sites or even worse!
I knew about history.replace but I had no idea you could cross sites. Suppose a site, for example, leaves a trail of Amazon Shopping, and curious, you go to it to recall what you did, but it’s Amaz0n instead.
Well there's no need to suppose. While I think if it hasn't been exploited in 30 years, there probably isn't an attack surface, you can always demonstrate and report an exploit.
I dont think its highly exploitable, but you could get people in trouble - have them visit innocuous website during a vulnerable time window, spray a bunch of adult websites into their history, report them to the boss, future visits do not inject history items.
It doesn't wipe from history on Vanadium GrapheneOS (likely same on Android Chrome). It does change its icon to Google and open Google and weather websites.
It only replaces the current page, and VPD is not a single-page app. So if you've been clicking around to find something, the previous pages will still be in your history.
If you need to hide your browsing history from an abusive partner, it would be more secure to use incognito mode and hit Alt+F4 when you need to escape. Unfortunately, Chrome renders incognito windows in dark mode by default. If you're normally on light mode, the transition is extremely conspicuous. Edge and Firefox do the same. It's as if all browser vendors have colluded to make it difficult to browse in secret.
Not enough people know this: in Chrome and Edge, making a Guest window is usually more useful than Incognito. You do it from the profile menu. It’s a throwaway profile, without the various weird special-case behaviors (including the ones websites can detect) that “incognito” has. When you close it, it’s all discarded anyway.
Thanks for the tip, but the usual open-source "you can change it" argument doesn't work in this case. People who like to control other people will interpret any deviation from the expected behavior as an attempt to hide something from them. If you change the defaults, those defaults can no longer serve as your alibi. All the more reason to ship secure defaults!
It’s pretty easy to catch someone fumbling with incognito if you can suddenly enter a room. (Not that it wouldn’t also be easy to catch someone clicking this button.)
Not a bad idea, except that *WEB PAGES SHOULD HAVE NEITHER ANY ACCESS TO NOR ANY CONTROL OVER THE HISTORY, PERIOD, AND SOMEBODY NEEDS TO BEAT THE MORONS RESPONSIBLE FOR THIS "WEB PLATFORM" BULLSHIT SENSELESS*.
It's good that a police department has chosen to do this with the misfeature, but the fact that there are non-abusive applications is not an excuse.
The site (vpd.ca) remains in history, just with the name replaced with "New Tab", which the script does just before redirecting. I would be very upset if browsers allowed sites to mess with history.
Any large city's PD is going to be controversial. From the experience of people close to me who work with police, the VPD are better run and have more programs like Car 33 than the RCMP in neighbouring jurisdictions.
Many of the perceived issues come from (I'll say it) corrupt judges who let out career petty criminals on a bail-less "promise to appear." Some officers report arresting the same person twice in one shift.
At least it's not TPS, where the chief likes to protect officers who commit perjury in the name of framing an innocent man for a Sergeant's suicide.
VPD has become notably more controversial after Jim Chu stepped down, before that it was notable how professional they were for a North American police department
That's funny, right before this I was just reading about how some idiot I knew from back in the day beat the shit out of some stranger on the SkyTrain for his headphones. Maybe it's time to realize how fucked Vancouver is and that the cops aren't the problem
In 2025 Vancouver had the lowest violent crime rate in 23 years. Not that there’s no crime of course but I don’t see that it really constitutes Vancouver being “fucked”.
The gov.uk Design System calls this the "Exit a page quickly" pattern [1], with an associated component [2]. It can be activated by clicking the Shift key three times.
There's this nice blog [3] that explains why they chose Shift instead of other keys, and also gives a nice overview of the pattern.
[1] https://design-system.service.gov.uk/patterns/exit-a-page-qu... [2] https://design-system.service.gov.uk/components/exit-this-pa... [3] https://beeps.website/blog/2024-10-09-why-govuk-exit-this-pa...
That blog entry is a delight to read!
> As a result of advertising people being bastards,
The gov.uk Design Team are a treasure.
I'm surprised that the blog doesn't mention what, to me, is the most obvious reason not use Esc — because it's conspicuous as all hell! If somebody's at risk and wants to hide what they're doing, their abuser seeing them repeatedly hit Esc just screams "I'm trying to hide something".
>It can be activated by clicking the Shift key three times.
Windows Sticky Keys entered the room.
Hilarious memories of hitting this when playing Return to Castle Wolfenstein.
For some reason I tap shift when thinking. Sticky Keys is my bane.
You can turn it off.
but where would be the fun in that
Was this a shared memory, specifically with regard to Sticky Keys and Return to Castle Wolfenstein? I thought it was a unique problem with me and my friends lol
It was pure comedy when someone hit it mid-engagement.
And then the spamming of the communication that would follow.
Those pre-canned German voices were so great.
RTCW:ET and sticky keys!
This is nice but how, as a user, do you learn it exists?
They do explain this:
> Interruption page
> Create a page to explain Exit this page to users.
> You must show this page after the start point of your service, but before the page where the user will see the Exit this page button for the first time.
> On longer services, you might need more than one interruption page.
Some New Zealand Government / Business sites have a Javascript-based pop-up available called Shielded Site https://shielded.co.nz/
> If you are experiencing family violence, don't worry, the information within this pop-up won't appear in your browser's history.
Pages like Banks or Council websites have it in their footer, so people can lookup information without it appearing in their history
Best would be if they took care to match the overall brightness of the page they redirect to.
Currently they're going from a "not 100% bright website" to "very much 100% bright website" and the flash in people's faces will be relatively obvious, if the other person been trying to hide websites themselves. I've heard.
This would also leave intact cookies, local/session storage, indexeddb, caches. All of which abusers do actually check, when controlling their victims.
A quick check shows that they don't store anything as cookies or any other browser storage.
The thing that still works is the back button after the redirection to Google, and you can still un-close the tab with Ctr-Shf-T which pops the Google page with back history intact. They have "cache-control: max-age=0" which probably should be changed to "cache-control: no-store". Still, the back button has the history if the user clicked links. Improvements could be:
- Recommend the usage of incognito mode.
- Blank the page immediately with "document.body.innerHTML=''" before the page replacement, as the replacement alone can have a delay and the abuser could see a glimpse of the police page. Blanking is immediate.
I'm sure 99% don't? Unless your abuser is a CS major
Have fun exploring the list of things we've caught abusers actually using. [0] Or don't. Reading and keeping your soul intact aren't compatible.
I am 100% sure that some do, thanks to firsthand life. And any doing it, is enough to get people dead, even if 99% don't. And yes, CS majors can be abusers, too.
[0] https://www.esafety.gov.au/key-topics/domestic-family-violen...
There are tools which exist to make things such as this accessible to non-CS major perpetrators.
I wonder if Hans Reiser would have checked...
In New Zealand we have a Shielded Site popup at the bottom of all government websites, and many popular privately owned websites too.
E.g. go to govt.nz and scroll to the bottom. There's a little icon of a computer that opens a popup element inside the page.
It gives information for victims of domestic violence and abuse.
Thank You for that. The popup, the monitor icon, being implemented as an iframe popup seems actually effective against browser history and cookies, sessisons, etc. I guess much better then Vancouver PD implementation.
Another thing that looks awesome, from a public service perspective, the zero data (phone plan) offer. From what it sounds like you don't have to pay for data on your phone plan: https://www.govt.nz/browse/engaging-with-government/no-data-...
That is public service! Well done.
https://govt.nz isn't a thing, but https://www.govt.nz is.
The former should forward to the latter.
Agreed. If the content isn't really designed for the wide world, the www hostname seems to be self-defeating, or at least describing the wrong thing.
This is amazingly pedantic, I love it.
So how do you agree? You're saying the opposite they said.
NASA.gov for many years lacked a no-www version. IIRC it had something to do with the no-www being important internally at the time.
It’s been a very long time, but as I recall MS recommendations for AD domains and dns collisions changed multiple times. Used to be real problems if you had overlap.
Stuff has it too.
I've implemented quick exit/escape buttons for a few organisations over the years and have spent a bit of time thinking about the limitations.
This pattern is definitely better than most and it is refreshing seeing they put some resources into it. In my professional experience, organisations often chose the "a link to another site like google is fine" option to save money and time while still getting to boast about their security culture.
One thing I have not found much research on however, but would love to hear about, is the effect of these kinds of patterns on the user's speed and choice of actions and how that effects outcomes. What I mean by that is, say someone is visiting the site on their phone and an adversary walks into the room. Most people these days know the fastest way to leave a page at short notice - maybe the home button/gesture, maybe swipe to another open app. Does having a big red button that introduces a new choice help them, or add to the cognitive bandwidth needed to handle the situation?
Remember, by definition the type of situations that this component is intended to help with are going to be stressful and likely have little to no warning; the person is going to walk in the room and the user has moments to act.
What is going to lead to measurably better outcomes; a big red button that the user needs to read, understand and move their finger/hand to, or their own knowledge of their own device's most efficient escape mechanisms?
This isn't meant as a criticism of the component. I am just genuinely curious as to what the best tool to assist folks in this situation is? We are talking about real people with real fears and the possibility of very bad outcomes.
It doesn't seem to work in Safari on iPhone correctly. When I click on the Back button (from weather.gc.ca), it goes back to the Vancouver PD site. Therefore I do not think that it is built well.
The other site someone mentioned (https://www.thetrevorproject.org/) doesn't have that issue.
This feature could be potentially be activated whenever the page is hidden (eg. by pressing the home button), although it would be very annoying for regular users.
Indeed this is mostly performative by the police because the user would switch apps, turn off the phone screen, or any other easier way as you describe.
Isn't that what "incognito mode" is for? Why should random websites have the capability to wipe themselves from history?
Because people who need help from the police and have to hide their tracks might not be completely technically literate. Or indeed fully literate at all.
This page serves the 0.01% most vulnerable.
Brilliant feature, well done Vancouver PD. A very serious boss mode. Lotus 1-2-3 wouldn't look quite right here but weather.ca is plausible.
I came here for the boss key
This feature has a long and storied history: https://en.wikipedia.org/wiki/Boss_key
Amusingly, I just noticed that alt-spacebar-n doesn't hide a window in Ubuntu.
Bullies can’t use Linux, that’s for the bullied.
The Trevor Project (LGBTQ support/suicide prevention site) has the same thing, triggered by a hotkey (press ESC three times). https://www.thetrevorproject.org/
Great execution
I like that this treats as a UX problem not just a technical one. The challenge is making sure people know the feature exists before they need it. An escape mechanism isn't very useful if you only discover it after you're already in a stressful situation.
Raises the question of whether browsers should have a [Replace Page, Erase Domain from History] button and hotkey.
This is a good idea that deserves to be across all Police, Help, Domestic Violence, 911, Suicide Hotline, etc sites across all countries.
Firefox already has "forget this site", which removes all traces of you ever visiting the site, but it's only available from the history modal.
Been there for probably decades, yet another thing mostly known to/used by "advanced" users.
What's weird is with Firefox for Android it's so difficult erasing a site from being remembered. Once visited, in my experience, even after deleting the history entry and last closed tabs item it still auto completes the domain in the addressbar (when it didn't before) and the only workaround is a full history wipe (since the Android version offers no granular timeframe like the desktop version).
So if accidentally clicking some link from some other app that auto opens the default browser it's a PITA to get FF for Android to forget about it.
Android is a wasteland, not surprised
Isn't this exactly why browsers implemented "private mode"?
Why don't they inform users about how to properly use private mode, which works with any website, instead of rolling their own solution, which the user has to learn just for that one website?
Because most users aren’t computer savvy and victims in a hurry probably don’t have time for a lesson.
On top of that, informing users requires them to open up the website in the first place… leaving it in… the history.
Private mode assumes you choose in advance. If you are suddenly approached, you can trigger the quick exit without any prior planning and it can be done inconspicuously.
They could be in a situation where that’s not available such as a child’s phone with parental controls or a managed work device that has it locked out.
reminds me of boss mode in leisure suit larry 1
That is an old reference. I bow to the senior geek.
lemmings.exe also had an immediate quit without warning on the esc key, iirc.
I think SimCity Classic had a similar feature.
Respect!
sdf commode too :)
Smart use of history-wiping and the Shift-three-times pattern from gov.uk shows how thoughtful UX can protect at-risk users. Small details, big safety impact.
I guess gov.uk is in fact the expert at history wiping patterns, especially when it comes to mass gang based violation of thousands of young girls from broken homes that they are complicit in the abuse of for decades.
A quick wipe and that didn’t happen. Works wonders.
A website can wipe itself from history? That seems like a major security issue.
"That seems like a major security issue."
Do you mean something you verified is happening or something you assumed is happening? You can go look at the site OP linked and find out what is happening and if it's a "major security issue". In this case, after user click/intervention, it renames the current history entry to "New Tab". This is not a security issue at all.
Well, it’s right there in the headline that the website wipes itself from history, so I don’t need any realignment of my ability to discern what I’ve read from what I’ve imagined. If all the site is doing is renaming itself New Tab then that sure isn’t newsworthy. Maybe a domestic violence reporting site should just name itself something innocuous in general without the quick escape? But nonetheless, a web site replacing its own history entry with something from another domain sure doesn’t sound secure.
Not to start an argument but in lamence terms, renaming history to "New Tab" is as close to wiping history as a website can manage. Concealing, obfuscating, hiding might have been better words but the non technucal audience would not see an issue with the language. Nuance is important, though and i agree its slightly misleading
I just tested it on both iPhone and Android and it does indeed remove itself from history and replaces with a link to a weather domain. That’s incredible that it is allowed and I can trivially think of a way to get someone to get to a fake banking site right now, or for that matter, fill the history with a series of visits to domestic violence sites or even worse!
https://developer.mozilla.org/en-US/docs/Web/API/Location/re...
This is known and commonly used -- since 1996. What's the risk? You can't change records about other domains.
I knew about history.replace but I had no idea you could cross sites. Suppose a site, for example, leaves a trail of Amazon Shopping, and curious, you go to it to recall what you did, but it’s Amaz0n instead.
Well there's no need to suppose. While I think if it hasn't been exploited in 30 years, there probably isn't an attack surface, you can always demonstrate and report an exploit.
I dont think its highly exploitable, but you could get people in trouble - have them visit innocuous website during a vulnerable time window, spray a bunch of adult websites into their history, report them to the boss, future visits do not inject history items.
What does “lamence” mean?
It's an eggcorn for "layman's".
"so I don’t need any realignment of my ability to discern what I’ve read from what I’ve imagined"
Not what I asked but I'm glad you're doing okay! I share your concerns.
Reminds me of the boss key in a lot of 80's games.
this is awesome. i had a similar idea for a women's shelter but this approach is 1000% better and less complicated than mine. bravo!
It doesn't wipe from history on Vanadium GrapheneOS (likely same on Android Chrome). It does change its icon to Google and open Google and weather websites.
the favicon isn't removed
It only replaces the current page, and VPD is not a single-page app. So if you've been clicking around to find something, the previous pages will still be in your history.
If you need to hide your browsing history from an abusive partner, it would be more secure to use incognito mode and hit Alt+F4 when you need to escape. Unfortunately, Chrome renders incognito windows in dark mode by default. If you're normally on light mode, the transition is extremely conspicuous. Edge and Firefox do the same. It's as if all browser vendors have colluded to make it difficult to browse in secret.
Not enough people know this: in Chrome and Edge, making a Guest window is usually more useful than Incognito. You do it from the profile menu. It’s a throwaway profile, without the various weird special-case behaviors (including the ones websites can detect) that “incognito” has. When you close it, it’s all discarded anyway.
Apparently Firefox has a config option to disable this:
browser.theme.dark-private-windows. Set to false, and you're set.
Thanks for the tip, but the usual open-source "you can change it" argument doesn't work in this case. People who like to control other people will interpret any deviation from the expected behavior as an attempt to hide something from them. If you change the defaults, those defaults can no longer serve as your alibi. All the more reason to ship secure defaults!
Aye, the world we live in.
Maybe just use an incognito window?
It’s pretty easy to catch someone fumbling with incognito if you can suddenly enter a room. (Not that it wouldn’t also be easy to catch someone clicking this button.)
Not a bad idea, except that *WEB PAGES SHOULD HAVE NEITHER ANY ACCESS TO NOR ANY CONTROL OVER THE HISTORY, PERIOD, AND SOMEBODY NEEDS TO BEAT THE MORONS RESPONSIBLE FOR THIS "WEB PLATFORM" BULLSHIT SENSELESS*.
It's good that a police department has chosen to do this with the misfeature, but the fact that there are non-abusive applications is not an excuse.
The site (vpd.ca) remains in history, just with the name replaced with "New Tab", which the script does just before redirecting. I would be very upset if browsers allowed sites to mess with history.
its too bad they do very little fighting actual crime same with montreal pd probably two least effective and disliked departments in all of canada
Any large city's PD is going to be controversial. From the experience of people close to me who work with police, the VPD are better run and have more programs like Car 33 than the RCMP in neighbouring jurisdictions.
Many of the perceived issues come from (I'll say it) corrupt judges who let out career petty criminals on a bail-less "promise to appear." Some officers report arresting the same person twice in one shift.
At least it's not TPS, where the chief likes to protect officers who commit perjury in the name of framing an innocent man for a Sergeant's suicide.
VPD has become notably more controversial after Jim Chu stepped down, before that it was notable how professional they were for a North American police department
A lot of the first hand experiences I've heard were from around Chu's tenure, so I can't refute that.
But when the Vancouver PD are beating you up, you wont have time to load the page to locate the quick escape button.
That's funny, right before this I was just reading about how some idiot I knew from back in the day beat the shit out of some stranger on the SkyTrain for his headphones. Maybe it's time to realize how fucked Vancouver is and that the cops aren't the problem
Vancouver is fucked in many ways but general safety is not one of them. Quality of life is quite good if one can afford.
In 2025 Vancouver had the lowest violent crime rate in 23 years. Not that there’s no crime of course but I don’t see that it really constitutes Vancouver being “fucked”.
Not all crimes are reported in Vancouver. But agree is not as bad as some paints.