Susan Harkins (408) [Avatar] Offline
Please post errors found in the published version of Progressive Web Apps. If necessary, we'll publish a comprehensive list for everyone's convenience.

Thank you,
Susan Harkins
Errata Editor
533996 (1) [Avatar] Offline
Hi Susan,

The last sentence before 1.2.1. Building a business case for Progressive Web Apps reads:
Once you get into the swing of building Progressive Web Apps, you’ll how easy it is.

I suspect it should read:
Once you get into the swing of building Progressive Web Apps, you’ll see how easy it is.

Susan Harkins (408) [Avatar] Offline
I suspect you are correct! Thank you!

Susan Harkins
395896 (1) [Avatar] Offline
Page 34, section 3.2.1: "how this work in reality"

And on page 35 the code example contains this (at least in my pdf version):

// Register the service worker if ('serviceWorker' in navigator) {

So the if statement is on the same line as the comment.

Page 41: "If the response was successful, you're clone the response again."
Simon Smith (2) [Avatar] Offline
Quite a bizarre collection: p11, the line before listing 1.1. has two repeated words:
in in the next listing listing in your HTML web page.

And the title for Listing 1.1 itself is
A basic HTML beb bage
18443 (1) [Avatar] Offline
About this Book section has a link to Dean's blog showing as
Needs to be updated to

Susan Harkins (408) [Avatar] Offline
A current errata list for Progressive Web Apps is available at This list hasn't been verified by the author. Thank you for participating in the collection process. Your contributions are a great help to us and other readers.

Susan Harkins
Errata Editor