Back button in UI doesn't always go back to correct page

[adrake33]

Summary

The Back button on the trading page does not go back to the correct place on the Portfolio page.

Steps to reproduce

1. Sign into dev.augur.net with test account 0x913dA4198E6bE1D5f5E4a40D0667f70C0B5430Eb.
2. Scroll down to the Resolved section of the Portfolio:Positions page and go to the second page of markets.
3. Click on a market, such as "test scalar 8-1"
4. When the trading page comes up, click on the Back button and note that it returns to the top of the Portfolio:Positions page, not the Resolved section.

Expected behavior

Ideally, the Back button should return to same place on the Portfolio:Positions page. This can be confusing to users.

[adrake33]

This will likely be resolved by the new trading page redesign, leaving it open for now

[pgebheim]

@bthaile @adrake33 --- Will this actually be taken care of in this new Trading page redesign? If not I think we should just move this into the Bugs epic and decide a priority.

[bthaile]

It will be less obvious in the redesign. This is an issue of how we handle navigation history and our back buttons.

We do a makeshift version of “back” with users going from trading page to report/dispute and send the user back to trading page, buts a hack.

We need to design for this behavior when building out the redesign.