Polyfill fetch for Internet Explorer 11
What does this MR do?
Fetch has been broken for a while in Internet Explorer 11. This adds a tiny fetch polyfill (500 bytes) in order to mitigate the issue, until we are officially drop Internet Explorer 11 support later this year.
When looking into our polyfills, having to look up why we polyfill was a bit tedious, so let's add documentation on the why!
This will make it way easier to remove outdated polyfills once we deprecate a browser.
Screenshots
Does this MR meet the acceptance criteria?
Conformity
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Changelog entry -
Documentation (if required) -
Code review guidelines -
Merge request performance guidelines -
Style guides -
Database guides -
Separation of EE specific content
Availability and Testing
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Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process. -
Tested in all supported browsers -
Informed Infrastructure department of a default or new setting change, if applicable per definition of done
Security
If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:
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Label as security and @ mention @gitlab-com/gl-security/appsec -
The MR includes necessary changes to maintain consistency between UI, API, email, or other methods -
Security reports checked/validated by a reviewer from the AppSec team
Edited by Lukas 'ai-pi' Eipert