IE 10 is treating the data coming back from the JSONP request as a
string and not as XML. I have confirmed this issue is happening on
numerous IE10 machines but have not seen it on any other browser.
The change simply checks the type of the data variable and if it is a
string it parses the string as XML and updates the data object.
Implemented "Expose original event in handlers" (#23) for MouseTracker
Added OpenSeadragon.getElementOffset() method. Element-relative mouse
coordinates should be correct even if the element and/or page is
scrolled (#131)
The TileSource error handling path used to raise non-obvious
"Unspecified error" exceptions on IE < 10 when configured with a URL
from a different origin (hostname or port) because the handler included
``xhr.status`` in the error message, triggering a security exception.
Now the second exception is caught and the log message will use the
original exception message instead to make the root cause more obvious.
Prior to IE 10, XmlHttpRequest cannot be used for requests to a
different origin even when the target URL's CORS headers would allow
access (see http://caniuse.com/#feat=cors).
This is easy to miss in testing if you use a single origin during
testing but have a CDN or domain-sharding for production and will break
the error handler function passed to makeAjaxRequest() if that code
assumes it can access properties on the request object.
This adds a more informative pointer to Microsoft's documentation when a
security exception is raised.
So far only 90 degree rotation is supported.
Only the image is currently being rotated.
Overlays, debugger, and the navigator still need to be updated to support rotation.
canvas pans when tap on touch screen
reason:
onTouchStart calls onMouseDown which registers 'mousemove' event handler.
when I tap on touch screen, even though browser did not dispatch 'touchmove' event, it dispatched 'mousemove' event.
therefore, the 'mousemove' handler pans canvas.
fix:
stop onTouchStart handler registering 'mousemove' handler as onMouseMove will be properly triggered by onTouchMove
(does not override the draw functionality).
Add an overlay option 'useTransform' that will transform the overlay
element instead of moving it's postion - useful for SVG elements
