Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
What kind of change does this PR introduce?
bugfix
Did you add or update the
examples/
?No
Summary
The dev server uses
opn
to open the browser, which returns a promise. In headless environments, this call will fail and the promise will be rejected. Since node v6.6.0, aUnhandledPromiseRejectionWarning
will be output when a rejected promise has no handler.This PR adds a
.catch
handler and outputs a user friendly message that the browser could not be opened, and not to use the open flag in headless environments.Does this PR introduce a breaking change?
No
Other information
None