Password Fields

[Code Wizard]

I was wondering...
Let's say u have 2 text fields:user and password on a site.
After entering them sometimes u get a "Cannot find server error" or anything similar preveniting you from sending the data...
After that u can click on the back button and the page is reloaded with what u entered in the fields.
My question is,why does this happen on some sites,while on others it says "Because of security reasons IE does not auto-complete de submited data" or something similar...
And isn't this a dangerous thing...?

[ecnarongi]

Possibly on some sites the script or page just could not be found. The website manager may have just updated the website and the link to the script of the referring page was broken.

[missing-score]

This generally happens when you send POST data to the next page, and when you click back it will ask you if you want to send again, if you click no, it will not send it and bring up a page like that.

[ecnarongi]

I thought when post data is missing you get the "Warning: Page has expired" error and you must refresh? I understood Code Wizard to be asking something different.

What are you asking Code Wizard?

[Code Wizard]

Originally posted by ecnarongi
I thought when post data is missing you get the "Warning: Page has expired" error and you must refresh? I understood Code Wizard to be asking something different.

What are you asking Code Wizard?

I am asking why on some sites,"Page has expired" appears,while on some others it doesn't.

[ecnarongi]

OK, when you click the "back" button or do a right click "back" or a history.go(-1), etc. you are not actually going to the site your are going to the browsers cache.

If the expiration header is older than the header you have in your cache you will get that error messeng. When you refresh you are sending a request to grab a new header and you can also refresh the information that was sent to the page.

I believe this to be accurate, if I am wrong please let me know