Sorry, I don't understand. Can you rephrase?

Annotated screenshots might help!

In the elm-spa-example, clicking on the tags will not change the url since href is javascript:void(0) and also since onClick (SelectTag tagName) which execute the corresponding update on the models. There's nothing wrong here, except the user can not share the url to other user that is looking on the content for that active tag.

Meanwhile building a complex app such as this user-friendly database-interface, and one of the goal of the app is that whatever the user is looking at, he can copy the url and share it on chat with other users and they will be seeing the same content.

Take notice of the clicking on between tabs inventory, actor and category clicking on those tabs will update the Model and in turn the view.

There are 3 possible ways the user could see the same content:

• (1) Clicking a button will execute an elm update .. Cmd Msg and display the corresponding view (very fast, since the data has already been loaded from the server).
• (2) Right clicking open in new tab the href will display the same content, the difference is that the app will initialize from the beginning, fetch data from the server and initialize the view and will display the same content ( slow ).
• (3) Typing / Copy pasting on the URL will load the app from the beginning, fetch data from server and initialize the view and will display the same content ( also slow ).

Item (2) and (3) works perfectly, but item (1) has a lot of complications since:
After the model and update has been executed I added a

model =>Cmd.batch [Route.modifyUrl ... ]

to change the browser URL so that users can share the new url based on the new content he is looking.
The side-effect is that it seems (3) is triggered, causing it to load afterwards, the reload( triggered re-initialize) is very subtle, since it displays the same view so there is no jumps in between view, but take notice of the loading-indicator at the top.

TL:DR;

If you could make the elm-spa-example to change the url when clicking on tags to something like
http://localhost:4000/#/tags/dragons while showing the new content without triggering a reload, then that would solve my issue.

@ivanceras I solve this exact problem on the profile page which has the article tabs. When you click the tabs the URL changes so you can share either URL to open the page on that tab. At the same time, when on the page and clicking the tab that page doesn’t reload.

For e.g. Maksim Esteban My Articles and Favourited Articles tab.

Additionally, I could exploit the same technique on the home page with the tabs and the tags.