You can’t view a web page’s source, and you can’t Command+F to search for text on the page, but you sure can get a debugging console to see the errors on the page. Here’s how:
Find and open the Settings app
Select Safari
Scroll down to find the Developer option at the bottom
Turn on the Debug Console
In Safari, look for the debug console’s summary info at the top of the page, just below the URL bar
Touch the summary info to view a detailed report for the errors on the page