"Send another file" button is not working on "Something went wrong!" page

[SoftVision-CosminMuntean]

[Affected versions]:

• Firefox 54.0.1 and up

[Affected Platforms]:

• All Windows
• All Mac
• All Linux

[Steps to reproduce]:

1. Start the Firefox 54.0.1 browser and navigate to "https://send.stage.mozaws.net/" page.
2. Upload a large file ~1.5 Gb.
3. In a new tab upload the same file.
4. If the "Someting went wrong!" page is not displayed, repeat step 3.
5. Click the "Send another file" button and observe the behavior.

[Expected result]:

• You are redirected to the Send home page.

[Actual results]:

• Nothing happens the button is not working.

[Notes]:

• There are multiple cases when you receive the "Something went wrong!" page, but I described only one scenario in order to get the page.
• Here is a screen recording with the issue: