Systems, methods, and media for managing editable previews of webpages

A method for managing an editable preview of a webpage, the method comprising:

• receiving a request to generate a plurality of editable previews of a webpage, each editable preview comprising a rendering of the webpage that allows a content editor to edit content of the webpage in context view and to view edits to the webpage in a visual format that conforms to how the webpage will actually be rendered by a particular browsing application, the editable preview generated via a preview server, the preview server being used to generate each of the various editable previews of the same webpage, the webpage comprising assets arranged according to a layout;
• responsive to the request, obtaining, via the preview server, assets of the webpage from at least one content repository;
• generating, via the preview server, a first editable preview of the plurality of editable previews of the webpage using the obtained assets, the layout, and selections of a plurality of emulation attributes from an emulation template that determine how to generate a view of the webpage as it would be rendered by a particular browser application on a particular computing device having a selected operating system, the plurality of emulation attributes comprising any of visitor preferences and ambient data;
• providing, via the preview server, the first editable preview of the webpage to an authoring environment for editing by a first content editor, the first editable preview emulating the webpage as it would be rendered for the particular browser application, the particular computing device, and the selected operating system;
• receiving a selection of at least one obtained asset for editing by the first content editor, the selection of the at least one obtained asset within the first editable preview causing the preview server to lock the at least one obtained asset to prevent editing by additional content editors;
• providing a second editable preview of the plurality of editable previews of the webpage to a second content editor, the second editable preview emulating the webpage as it would be rendered for another particular browser application, another particular computing device, and another selected operating system, the at least one obtained asset of the second editable preview of the webpage being in the locked format;
• providing a locked notification to the second content editor when the second content editor attempts to modify the at least one obtained asset in the locked format;
• and
• updating the at least one obtained asset in the second editable preview of the webpage provided to the second content editor in real-time as the first content editor edits the at least one obtained asset.