CODEWITHSUNDEEP
htmlfirefoxcheckbox
readonly
readonly

Reputation: 355584

Why does the checkbox stay checked when reloading the page?

I'm reloading a web page that has the following code:

<label for="showimage">Show Image</label>
<input id="showimage" name="showimage" type="checkbox" value="1" />

Even though the HTML stays sent to the browser is the same for each reload of the page, the checkbox always takes on the checked value when a reload was performed. In other words, if the user checks the checkbox and reloads, the checkbox is still checked.

Is there some caching going on here?

Edit: I tried Gordon Bell's solution below and find that this is still happening even after removing the value="1". Anything else I might be missing?

<label for="showimage">Show Image</label> 
<input id="showimage" name="showimage" type="checkbox" />

Upvotes: 96

Views: 74420

Answers (9)

cmshnrblu
cmshnrblu

Reputation: 111

This is an old question but still an active issue for firefox. None of the responses i tried solved it, but what did solve it for me was simply this:

    document.getElementById('formId').reset();

This simply resets the form to the default options every time the page loads. Not ideal since you lose granular control, but its the only thing that solved this for me.

Upvotes: 5

Mohamed Gomah
Mohamed Gomah

Reputation: 21

the public idea to solve that

make form & reset button 

<form>
<checkbox>
<reset>
</form>

$(reset).trigger("click");//to clear the cache and input 
$(checkbox).trigger("click");//to mark checkbox

Upvotes: 1

Sumit Mehta
Sumit Mehta

Reputation: 39

$("#showimage").prop("checked",false);

Upvotes: 0

Owen
Owen

Reputation: 84503

Yes, I believe it is caching. I see this behaviour on Firefox for example (not Safari, for what that's worth :) ).

you can reload the page and bypass the cache (on Firefox) using CTRL-SHIFT-R and you'll see the check value doesn't carry (a normal CTRL-R will grab the info from the cache however)

edit: I was able to disable this server side on Firefox, setting a cache control header:

Cache-Control: no-store

this seems to disable the "remember form values" feature of Firefox

Upvotes: 39

ironbirdman
ironbirdman

Reputation:

Add autocomplete="off" into the form element on the page. The downside is that this isn't valid XHTML, but it fixes the issue without any convoluted javascript.

Upvotes: 208

RainChen
RainChen

Reputation: 531

set autocomplete="off" with js is also working well.

for example using jquery:

$(":checkbox").attr("autocomplete", "off");

Upvotes: 37

Aleksandar
Aleksandar

Reputation: 1339

It could be due to a browser caching - very useful for static web sites that are not changed too often, very bad for dynamic web applications.
Try with those two meta tags in the head section of the page. Second meta tag is for older browsers (IE5) that are not recognizing "no-cache" meta tag and although different produces the same result: Each request goes to the server.

<META HTTP-EQUIV="Pragma" CONTENT="no-cache"> 
<META HTTP-EQUIV="Expires" CONTENT="-1">

Upvotes: 0

Ionuț Staicu
Ionuț Staicu

Reputation: 22164

or instead of f5 press enter on address bar :)

Upvotes: 0

PhiLho
PhiLho

Reputation: 41142

It is a nice feature of Firefox: if you type something but reload the page, the text remains in the text area. Idem for other settings you have chosen.

Alas, it doesn't work in SO (probably reset by JS) and dumber browsers like IE...

Which suggest a solution: if you really need to do that, reset the form with JS. form.reset() might do the job (acts like the Reset input button).

Upvotes: 1

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