From V6.0.0
iShare now uses Local Storage rather than Cookies to store user state information e.g. layers selected, position on map) etc. This should have no visible effects to the user other than that they should no longer hit problems when using large numbers of layers.
Note: Currently there is no expiry date on localStorage settings as there is for cookies.
What is a cookie?
Please note that there is a Browser imposed cookie restriction on the number and size of cookies e.g. IE 50 cookies max, 5117 characters per cookie. If this is exceeded then an error message will be displayed. The way to avoid this message is to reduce the number of Layers that are being displayed and/or reduce the number of characters used within your Layer names.
GDPR Compliance
From Version 5.4.22 and Version 5.6.26 please ignore the Expires column in the following table.
From these versions of iShare Maps, cookie expiry is configurable by the iShare administrator in iShare Studio as a specific number of days. If expiry is set to 0 days, the cookies are then Session Cookies.
Session cookies - are temporary and erased when you close your browser at the end of your session. The next time you visit that particular site it will not recognise you and will treat you as a completely new visitor as there is nothing in your browser to let the site know that you have visited before.
The following is a list of cookies used by iShare Maps for each installation.
You should be able to see all of the Astun related cookies when using browser developer tools and viewing the application.
| Name | Typical Content | Expires |
|---|---|---|
| ASP.NET_SessionId | Random string identifying browsing session to server | When user exits browser |
| astun | Version number of Astun iShare web application | After 30 days |
| astun:baseMap | Identifier for most recently selected base map in My Maps | After one month |
| astun:currentLocation | Most recently set address and its coordinates | After 30 days |
| astun:mapSource | Identifier for map overlay configuration in My Maps | After one month |
| astun:mapView | Location and extents of the most recent view of the map in My Maps | After one month |
| astun:panelsAccordionStatus | Number identifying last opened panel in My Nearest | After 30 days |
| astun:panelsCollapseStatus | IDs of collapsed panels in My Maps | After 30 days |
| astun:previousLocation | Address and its coordinates of last location in My Maps | After one month |
| astun:rLayers_[profile_identifier] | The list of layers currently added to the Map Categories panel for a given profile (e.g. ORGANISATION_mapsource) | After one month |
| astun:vLyrs_ish_[profile_identifier] | Layers turned on in My Maps for a given profile (e.g. ORGANISATION_mapsource) | After one month |
| atMyCouncil | Identifier of most recent tab visited by user and changes to visibility of panels in My House and My Nearest | After one month |
| atLocation | Most recently set address and its coordinates | After 30 days |
| astun:layerPanelOpenGroups | Layer group expanded in panel in My Maps | After one month |
| myAlerts | Encrypted user logon details | After 90 days |
Older versions may have the following set | ||
| panelsaccordionstatus | Number identifying last opened panel in My Nearest (replaced by astun:panelsAccordionStatus) | After 300 days |
| jQuery-ui-panelsCollapseStatus | IDs of collapsed panels in My Maps (replaced by astun:panelsCollapseStatus) | After one week |