* improve: show possible reasons when url fetch fails
* Only check for fail reasons if no HTTP status code
* Check for mixed content errors first
* Harmonise error messages
* Set error source to 'fetch'
* improve: hide loading validator image (#4287)
* hide missing validator image
* Render nothing if validator badge has not loaded/received errors
* Revert style changes
* Allow images with data scheme (#4305)
* Add UnitTest for image
allows image elements with https scheme
* Test images with data scheme
* Add allowedSchemesByTag
* Fix error Strings must use doublequote quotes
* Add empty div (#4236)
if there are properties show an empty div
* v3.12.1 (#4311)
* v3.12.1
* Rebuild dist for v3.12.1
* Use window wrapper instead of direct reference
* Add trailing period to error messages
* improve readability
* default to empty `ImmutableMap` when grabbing op metadata
* pass `errors` into JsonSchema components
* Account for Immutable data structure in JavaScriptonSchema...
...and create empty Lists instead of Maps by default.
* Pass ImmutableList through to JsonSchema child components
* Add lazy resolving spec state extensions
* TEMPORARY: disable conventional resolved spec
* WIP
* Use resolveSubtree in Operation display
* Freebie: short-circuit Markdown component if it is given plaintext
* NEW DEFAULT BEHAVIOR: `defaultModelsExpandDepth: 1` does not expand individual models
* Render faked Model expander to trigger resolution
* Baseline support for Editor lifecycles
* Display operation summaries before the operation is resolved
* Test migrations
* WIP
* Swagger2 TIO Body params
* a bit of cleanup
* Debounce string param inputs
* Reach into unresolved operation for deprecated flag, if available
* Fire subtree request outside of render
* Remove debugging flags
* Fix logical errors in spec statePlugins
* TODOs become TODONEs!
* Migrate deeplinking feature to non-resolved spec action
* ESLint fixes
* Reduce action dispatch volume; run resolver on next tick
* Batch resolver requests; use batch progressive results in later iterations
* Add loading states to Model and Operation views
* Preserve object order; remove dupl. import; add warning for action
* LINTER!
* Use require to load SVG
Works around Webpack weirdness
Contains a breaking internal API change to `errActions.newThrownErr`, which will require a MINOR version bump. Swagger-Editor does not depend on the old usage style.
