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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The Screen.unlockOrientation method removes all the previous screen locks set by the page/app.
Note: This method only works for installed Web apps or for Web pages in full-screen mode.
Syntax
var unlocked = window.screen.unlockOrientation();
Return value
Returns true if the orientation was successfully unlocked or false if the orientation couldn't be unlocked.
Example
var unlockOrientation = screen.unlockOrientation || screen.mozUnlockOrientation || screen.msUnlockOrientation || (screen.orientation && screen.orientation.unlock);
if (unlockOrientation()) {
// orientation was unlocked
} else {
// orientation unlock failed
}
Specifications
| Specification | Status | Comment |
|---|---|---|
| Screen Orientation API The definition of 'Screen Orientation' in that specification. |
Working Draft | Draft specification |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | No support | (Yes) moz[1] | 11 ms[2] | No support | No support |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | No support | (Yes)[3] | (Yes) moz[1] | No support | No support | No support |
[1] This API is currently in draft form. It is only implemented as a prefixed method (mozUnlockOrientation) in B2G and Firefox for Android.
[2] This API is implemented using a prefix (msUnlockOrientation) in Internet Explorer for Windows 8.1 and Windows RT 8.1. It is not supported on Windows 7.
[3] This API is implemented with the draft version that uses the window.screen.orientation.lock / window.screen.orientation.unlock syntax