====Problem
This task proposes changes in the behavior of device back key to improve the story creation experience.
====Design
**01. Current behavior of story builder page.**
A tap on the device's back key brings user out of the story builder.
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**01a. Proposed behavior of story builder page.**
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- A tap on the device's back key should bring up a confirmation dialog box.
- Tap on Discard would take user out of story builder.
- Tap on Cancel would take user back to story builder page.
//Note: we can use existing confirmation dialog box(class="ext-wikistories-confirm-content") here. //
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**02. Current behavior of publish page.**
A tap on the device's back key brings user out of the story.
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**02a. Proposed behavior of publish page.**
A tap on the device's back key should bring user back to the story builder.
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**03. Current behavior of highlight text page.**
A tap on the device's back key brings user out of the story.
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**03a. Proposed behavior of highlight text page.**
A tap on the device's back key should bring user back to the story builder.
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**04. Current behavior of overflow menu.**
A tap on the device's back key brings user out of the story builder.
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**04a. Proposed behavior of overflow menu.**
A tap on the device's back key should close the overflow menu and return back to story builder.
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**05. Current behavior of image selection screen.**
A tap on the device's back key brings user out of the story.
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**05a. Current behavior of image selection screen.**
|{F35728901 width=260}|
- A tap on the device's back key should bring up a confirmation dialog box.
- Tap on Discard would take user out of story builder.
- Tap on Cancel would take user back to story builder page.
//Note: we can use existing confirmation dialog box(class="ext-wikistories-confirm-content") here. //
===Acceptance Criteria
===Test Scenarios
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