load vs pageshow event when page is cached

[davej]

So the load event cannot reliably be used to initialize a page? That seems strange to me.

 

I've never noticed this problem but I guess it occurs more on smartphones?

 

http://www.w3schools.com/jsref/event_onpageshow.asp

 

http://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_onpageshow_persisted

 

http://lucentminds.com/archives/using-pageshow-to-detect-cached-pages.html

[Ingolme]

It seems that some browsers don't load the page again when you press the back button, they just show the cached version they had. The load event fires when an HTTP transaction has completed. If the data is coming from the cache there is no HTTP transaction.

[davej]

I just attempted to get the "tryitnow" example to give me a "true" on my iPhone but it kept giving me "false" until the phone went to sleep and then woke up. Then it gave me the 'true."

 

At first glance the onload event also seems to be triggered -- since onload styling or results remain visible -- but these are only cached results.

 

I have a little test page here...

 

http://www.stlnetwork.net/test/mobiletest.html