Create page crashes on unpatched IE11 RTM

Location : https://pug.jira.com/wiki/dashboard.action User-Agent : Mozilla/5.0 (Windows NT 6.1; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; rv:11.0) like Gecko Referrer : https://pug.jira.com/wiki/plugins/createcontent/draft-createpage.action?draftId=1330380880 Screen Resolution : 1596 x 995 User Name : rsangster Current Dark Features : federated.search,notifications.rolemedium.hipchat.SHARE_PAGE,notification.plugin.api.enabled.admin.settings.page,confluence-inline-comments-resolved,content.rank,ondemand.marketplace.prototype,notifications.rolemedium.hipchat.TASK_UPDATE_NOTIFICATION,api.viewpage.link,com.atlassian.confluence.plugins.confluence-roadmap-plugin,email-tracking,recently-viewed.quicknav,editor.chunky.tips,jirachart.twodimensional,dfe.persistence,confluence-questions,heatmapper,hipchat-emoticons,allow.upload.all.file.types,notification.plugin.api.enabled.rest.static,rotp.project.shortcuts,connect-page-history,lighter-editor-v1,jirachart.createdvsresolved,rotp.admin.shortcuts,confluence-inline-comments,confluence-highlight-internal-non-privacy-policy-safe-events,confluence-monitoring.ignore.ondemand.check,notifications.medium.hipchat,show-drag-and-drop-overlay,confluence.request.access.enable,notifications.rolemedium.hipchat.com.atlassian.confluence.plugins.mentions,editor.breadcrumbs,dfe.pin-toolbar,editor-image-scale-by-height,notes,searchv3,notification.plugin.api.enabled.com.atlassian.confluence.event.events.content.blogpost.BlogPostCreateEvent,notification.plugin.api.enabled.com.atlassian.confluence.event.events.content.page.async.PageEditedEvent,notification.plugin.api.enabled.com.atlassian.confluence.plugins.tasklist.event.SendTaskEmailEvent,notification.plugin.api.enabled.com.atlassian.confluence.event.events.content.comment.CommentUpdateEvent,notification.plugin.api.enabled.com.atlassian.confluence.event.events.content.comment.CommentCreateEvent,notification.plugin.api.enabled.com.atlassian.confluence.event.events.content.page.async.PageMovedEvent,notification.plugin.api.enabled.com.atlassian.confluence.event.events.follow.FollowEvent,notification.plugin.api.enabled.com.atlassian.confluence.plugins.sharepage.api.ShareContentEvent,notification.plugin.api.enabled.com.atlassian.confluence.event.events.content.blogpost.BlogPostUpdateEvent,notification.plugin.api.enabled.com.atlassian.confluence.plugins.mentions.api.ConfluenceMentionEvent,notification.plugin.api.enabled.com.atlassian.confluence.event.events.content.attachment.AttachmentBatchUploadCompletedEvent,notification.plugin.api.enabled.com.atlassian.confluence.event.events.security.ForgotPasswordEvent,notification.plugin.api.enabled.com.atlassian.confluence.event.events.content.page.async.PageCreatedEvent,notification.plugin.api.enabled.com.atlassian.confluence.event.events.like.LikeCreatedEvent,notification.plugin.api.enabled.com.atlassian.confluence.event.events.content.blogpost.BlogPostMovedEvent SpaceTheme : lighter-editor theme-default dashboard aui-layout aui-theme-default VersionNumber : 5.6-DEV-4679