After exporting your InDesign layout with in5, the in5 Conversion Process dialog appears
Pictured above: in5 Conversion Progress dialog with the Open in Default Browser button highlighted with a red box around it.
with an option to click the Open in Default Browser button. Clicking that button opens the index.html file from the html5_output folder on your local hard drive in your browser.
When you look at the address bar in the browser, the link will look something like the following:
When the address starts with “file” as opposed to a “http” or “https,” the address is a file path to the index.html file on your local hard drive. You can see it because you have access to the resources on your computer. However, anyone who does not have access to your computer will not be able to access your content via that link.
In order to share a link to someone who does not have access to your computer, the output of the html5_output folder needs to be uploaded to a web server. Here’s additional information about free and paid hosting options and uploading content:
An alternative to uploading content to a web server for sharing content would be to use a file sharing service, such as Creative Cloud synced files, WeTransfer, or Dropbox Transfer, that allows you to create a link that can be shared via email:
When you upload your content to either a web server or to a file sharing service, make sure that you’re uploading all the contents of the html5_output folder and not just the index.html file. The index.html file relies on the assets folder for the assets and instructions that are required for your content to appear and function as you’ve designed it.