🐛 Bug Report: SyntaxError: Invalid regular expression: invalid group specifier name in Safari

[alexef]

📜 Description

Backstage suddenly stopped working in Safari.

More context in previous issue

👍 Expected behavior

Render correctly on Safari.

👎 Actual Behavior with Screenshots

It renders a blank page with the SyntaxError in the console.

👟 Reproduction steps

Start latest backstage in Safari.

📃 Provide the context for the Bug.

No response

🖥️ Your Environment

yarn backstage-cli info
yarn run v1.22.19
$ /Users/alex/work/stack/node_modules/.bin/backstage-cli info
OS:   Darwin 22.1.0 - darwin/arm64
node: v18.11.0
yarn: 1.22.19
cli:  0.22.9 (installed)
backstage:  1.16.0

Dependencies:
  @backstage/app-defaults                               1.4.1
  @backstage/backend-app-api                            0.4.5
  @backstage/backend-common                             0.18.5, 0.19.1
  @backstage/backend-dev-utils                          0.1.1
  @backstage/backend-plugin-api                         0.5.4
  @backstage/backend-tasks                              0.5.4
  @backstage/backend-test-utils                         0.1.39
  @backstage/catalog-client                             1.4.3
  @backstage/catalog-model                              1.4.1
  @backstage/cli-common                                 0.1.12
  @backstage/cli-node                                   0.1.2
  @backstage/cli                                        0.22.9
  @backstage/config-loader                              1.3.2
  @backstage/config                                     1.0.8
  @backstage/core-app-api                               1.9.0
  @backstage/core-components                            0.13.3
  @backstage/core-plugin-api                            1.5.3
  @backstage/dev-utils                                  1.0.17
  @backstage/errors                                     1.2.1
  @backstage/eslint-plugin                              0.1.3
  @backstage/integration-aws-node                       0.1.5
  @backstage/integration-react                          1.1.15
  @backstage/integration                                1.5.1
  @backstage/plugin-analytics-module-ga                 0.1.31
  @backstage/plugin-api-docs                            0.9.6
  @backstage/plugin-apollo-explorer                     0.1.13
  @backstage/plugin-app-backend                         0.3.47
  @backstage/plugin-auth-backend                        0.18.5
  @backstage/plugin-auth-node                           0.2.16
  @backstage/plugin-catalog-backend-module-aws          0.2.2
  @backstage/plugin-catalog-backend-module-github       0.3.2
  @backstage/plugin-catalog-backend-module-openapi      0.1.13
  @backstage/plugin-catalog-backend                     1.11.0
  @backstage/plugin-catalog-common                      1.0.15
  @backstage/plugin-catalog-graph                       0.2.32
  @backstage/plugin-catalog-import                      0.9.10
  @backstage/plugin-catalog-node                        1.4.0
  @backstage/plugin-catalog-react                       1.8.0
  @backstage/plugin-catalog                             1.12.0
  @backstage/plugin-events-backend-module-github        0.1.9
  @backstage/plugin-events-backend                      0.2.8
  @backstage/plugin-events-node                         0.2.8
  @backstage/plugin-explore-backend                     0.0.9
  @backstage/plugin-explore-common                      0.0.1
  @backstage/plugin-explore-react                       0.0.30
  @backstage/plugin-explore                             0.4.6
  @backstage/plugin-github-actions                      0.6.1
  @backstage/plugin-graphiql                            0.2.52
  @backstage/plugin-home-react                          0.1.1
  @backstage/plugin-home                                0.5.4
  @backstage/plugin-kubernetes-common                   0.6.5
  @backstage/plugin-org                                 0.6.10
  @backstage/plugin-permission-common                   0.7.7
  @backstage/plugin-permission-node                     0.7.10
  @backstage/plugin-permission-react                    0.4.14
  @backstage/plugin-proxy-backend                       0.2.41
  @backstage/plugin-scaffolder-backend                  1.15.1
  @backstage/plugin-scaffolder-common                   1.3.2
  @backstage/plugin-scaffolder-node                     0.1.5
  @backstage/plugin-scaffolder-react                    1.5.1
  @backstage/plugin-scaffolder                          1.14.1
  @backstage/plugin-search-backend-module-catalog       0.1.3
  @backstage/plugin-search-backend-module-elasticsearch 1.3.2
  @backstage/plugin-search-backend-module-explore       0.1.3
  @backstage/plugin-search-backend-module-pg            0.5.8
  @backstage/plugin-search-backend-module-techdocs      0.1.3
  @backstage/plugin-search-backend-node                 1.2.3
  @backstage/plugin-search-backend                      1.3.3
  @backstage/plugin-search-common                       1.2.5
  @backstage/plugin-search-react                        1.6.3
  @backstage/plugin-search                              1.3.3
  @backstage/plugin-techdocs-backend                    1.6.4
  @backstage/plugin-techdocs-module-addons-contrib      1.0.15
  @backstage/plugin-techdocs-node                       1.7.3
  @backstage/plugin-techdocs-react                      1.1.8
  @backstage/plugin-techdocs                            1.6.5
  @backstage/plugin-user-settings                       0.7.5
  @backstage/release-manifests                          0.0.9
  @backstage/test-utils                                 1.4.1
  @backstage/theme                                      0.2.19, 0.4.1
  @backstage/types                                      1.1.0
  @backstage/version-bridge                             1.0.4
✨  Done in 1.18s.

👀 Have you spent some time to check if this bug has been raised before?

• I checked and didn't find similar issue

🏢 Have you read the Code of Conduct?

• I have read the Code of Conduct

Are you willing to submit PR?

Yes I am willing to submit a PR!

[benjdlambert]

Can you find out what package this is coming from @alexf? And maybe get a stack trace from safari?

[SwarlsBarkley01]

Greetings, more context.

Reproduction steps

Start latest Backstage in Safari < 16.6, observed in Safari 16.3

Provide context for the bug

In Safari < 16.6 errors out in @backstage/core-components

Possibly in /src/components/Avatar/utils.ts

Possibly related to WebKit/WebKit#7109

Stack trace

Incoming - will update

Resolution - Safari

Update Safari to >= 16.6 -- included in Mac OS Ventura 13.5

Mitigation - Backstage

Set resolutions for @backstage/core-components to 0.13.2

"resolutions": {
    "@backstage/core-components": "0.13.2"
  },

[benjdlambert]

@alexef can you try update safari to the latest version and see if that fixes your issues?

[alexef]

@benjdlambert not easy as I cannot yet switch to macOS 13.5

[alexef]

@benjdlambert confirmed to be working again after upgrading safari to 16.6

[benjdlambert]

🎉 Nice! can we close this issue?