4 ms·
"For security reasons, data: and javascript: URIs no longer inherit the security context of the current page when the user enters them in the location bar; inst
by yan 15y ago
"For security reasons, data: and javascript: URIs no longer inherit the security context of the current page when the user enters them in the location bar; instead, a new, empty, security context is created. This means that script loaded by entering javascript: URIs in the location bar no longer has access to DOM methods and the like, for example. These URIs continue to work as before when used by script, however."
Good bye bookmarklets?
- int3 15y agoI believe bookmarklets still work -- the restriction only applies if the javascript: URIs were typed in by the user.
- JoshTriplett 15y agoRight. Apparently this "security" feature came about because people followed instructions on random facebook pages saying "paste this in your address bar to activate $RANDOM_FAKE_FACEBOOK_FEATURE". You can still run Javascript via the Scratchpad (Web Developer -> Scratchpad, or hit Shift-F4).
- beaumartinez 15y agoInteresting. Copying the TinEye bookmarklet, javascript:void(window.open('http://tineye.com/search?pluginver=bookmark_1.0&url='%20+%20encodeURIComponent(document.URL))); into the address bar did nothing; an "Error: uncaught exception: ReferenceError: window is not defined" was logged in the error console. Clicking it as normal worked as expected, though.
- simonw 15y agoSounds smart. It's extremely easy to get an unsophisticated user (heck, any user who isn't a web developer) to paste a random string of junk in to their URL bar - and doing so is a very nasty XSS vector that works no matter what precautions a site's developers have taken. I'm sure I've heard of this attack being used successfully on Facebook, spread through messages that say "paste this in to your URL bar to get X".
- re 15y agoSo those messages will say "press [whatever key combo activates the console] and paste this text there for a funny video" instead?
- pbhjpbhj 15y agoOr possibly "drag this link to the toolbar and click when on any page on Facebook to see which of your friends is viewing that page" or whatever.
- ck2 15y agoHopefully there is an about:config to undo that for power-users.
- josscrowcroft 15y agoYeah, I caught this hanging out at the bottom of the list too... Immediately set to thinking how I'm gonna have to go rewrite the dozen or so bookmarklets I've written to support FF6
- mbrubeck 15y agoBookmarklets are not affected when used as bookmarks. Only URIs typed directly into the location bar are affected.
- josscrowcroft 15y agoOh, sweet.