add support for 'DomReady' callback on linux

[napalu]

cosmetic: use bodyLen instead of len() in processRequest()

[napalu]

A small nitpick: the term "DomReady" is in my opinion misleading because it suggests an equivalence to javascript's 'DOMContentLoaded' whereas 'DomReady' is emitted when navigation has finished loading. Maybe the description and name of the go callback should be changed to reflect this?

[napalu]

fixes #1246

[leaanthony]

A small nitpick: the term "DomReady" is in my opinion misleading because it suggests an equivalence to javascript's 'DOMContentLoaded' whereas 'DomReady' is emitted when navigation has finished loading. Maybe the description and name of the go callback should be changed to reflect this?

That's a valid point. Originally it was to indicate that elements of the page were ready, including the runtime but I agree the name is now misleading. What would you call it?

[napalu]

Something like resourcesLoaded might be more appropriate - currently the comment to describe domReady after wails init is run reads: domReady is called after the front-end dom has been loaded.

I suppose we could leave the name as-is and just alter the comment to read domReady is called after front-end resources have been loaded - what do you think?

[leaanthony]

Updated comments in templates + website. Thanks for all your contributions 🙏