Reading of `scrollWidth` or `scrollHeight` occasionally fails

The following errors are sometimes logged when quickly hovering over different parts of a document:

org.eclipse.swt.SWTException: Cannot read properties of null (reading 'scrollWidth')
	at org.eclipse.swt.browser.Edge.evaluateInternal(Edge.java:962)
	at org.eclipse.swt.browser.Edge.evaluate(Edge.java:935)
	at org.eclipse.swt.browser.WebBrowser.evaluate(WebBrowser.java:405)
	at org.eclipse.swt.browser.Browser.evaluate(Browser.java:734)
	at org.eclipse.swt.browser.Browser.evaluate(Browser.java:683)
	at org.eclipse.lsp4e.operations.hover.FocusableBrowserInformationControl.safeEvaluate(FocusableBrowserInformationControl.java:144)
	at org.eclipse.lsp4e.operations.hover.FocusableBrowserInformationControl.updateBrowserSize(FocusableBrowserInformationControl.java:111)
	at org.eclipse.lsp4e.operations.hover.FocusableBrowserInformationControl.lambda$0(FocusableBrowserInformationControl.java:91)
	at org.eclipse.swt.browser.ProgressListener$2.completed(ProgressListener.java:97)
	at org.eclipse.swt.browser.Edge.lambda$43(Edge.java:1178)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:132)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4135)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3751)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1151)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1042)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:678)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:583)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173)
	[....]

org.eclipse.swt.SWTException: Cannot read properties of null (reading 'scrollHeight')
	at org.eclipse.swt.browser.Edge.evaluateInternal(Edge.java:962)
	at org.eclipse.swt.browser.Edge.evaluate(Edge.java:935)
	at org.eclipse.swt.browser.WebBrowser.evaluate(WebBrowser.java:405)
	at org.eclipse.swt.browser.Browser.evaluate(Browser.java:734)
	at org.eclipse.swt.browser.Browser.evaluate(Browser.java:683)
	at org.eclipse.lsp4e.operations.hover.FocusableBrowserInformationControl.safeEvaluate(FocusableBrowserInformationControl.java:144)
	at org.eclipse.lsp4e.operations.hover.FocusableBrowserInformationControl.updateBrowserSize(FocusableBrowserInformationControl.java:116)
	at org.eclipse.lsp4e.operations.hover.FocusableBrowserInformationControl.lambda$0(FocusableBrowserInformationControl.java:91)
	at org.eclipse.swt.browser.ProgressListener$2.completed(ProgressListener.java:97)
	at org.eclipse.swt.browser.Edge.lambda$43(Edge.java:1178)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:132)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4135)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3751)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1151)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1042)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:678)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:583)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173)
	[....]

Start in FocusableBrowserInformationControl.java, especially updateBrowserSize and safeEvaluate, where the stack traces show the failures. Reproduce the issue by quickly hovering over different document regions and observe the browser evaluation calls. Done means those interactions no longer log null scrollWidth or scrollHeight SWTExceptions.