[ESD-6221] Remove CSS variable from header height calculation #1867
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Changes
This change effectively reverts #1859 and reimplements the header height calculation in a way that doesn't use a CSS variable (this was breaking in IE11). All of this is designed to handle the case where the title is too large to be contained on one line.
To do this, this PR implements the ability for Lock to handle its own emitted events, and handles the
signin ready
andsignup ready
events to responds to tab changes and recalculate the header size.IE11 render
References
This was raised via an internal service desk ticket, from customers who were seeing header size issues in IE11 thanks to the lack of CSS variable support.
Testing
Please describe how this can be tested by reviewers. Be specific about anything not tested and reasons why. If this library has unit and/or integration testing, tests should be added for new functionality and existing tests should complete without errors.
Checklist