How to solve problem with PhpStorm 8.0.1 local server?

Question

phpstorm

When running scripts without debugging, they seem to work fine. True, with a small delay, even with a script like Hello, World!
But as soon as I start debugging them, then in the browser this script just runs "eternity" and does not display anything.
But in the console everything works.
And I can not debug and work after debugging attempts too.
The problem is solved by restarting PhpStorm.
And on a new one.

Answer 1

1. Pixel perfect
2. Code validity
3. PageSpeed ​​Insights
4. GTmetrix
5. Pingdom Website Speed ​​Test
6. Responsiveness test
7. Retina test (srcset, svg, icon fonts)

Answer 2

At Yandex, we have developed two tools:
- gemini for unit testing of layout with screenshots; individual blocks are compared with reference images; there is a separate convenient tool for removing and updating standards -  gemini-gui
- hermione for functional testing
Both tools use the WebDriver API, with which they go to Selenium Server or Appium. They know how to bypass stability problems (re-execution of tests), run tests as parallel as possible (for speed; flexibly configured), build understandable reports.
These tools are already testing SERP (search results page), Yandex Pictures, Yandex Video, Yandex News and other services.

Answer 3

https://habrahabr.ru/company/2gis/blog/277457/

Answer 4

List of links
1. Checking server response speed and correct display of content:
2. Checking compliance with W3C standards:
3. Checking content compression (including images, etc.):
4. Checking content caching (including images, etc.):
5. SSL
Check 6. SEO Check

Answer 5

I will duplicate the answer:
Check the site for everything you can:
Speed: pagespeed + gtmetrix
Validation of both HTML and CSS
Cross-browser compatibility: browserstack
Special attention to mac os, iphone, ipad!
For content capacity, for example, huifikator
Pixel Perfect - extension for chrome
Check for SEO: sitechecker.pro or other resources

Answer 6

Checked in browsers, everything is fine, everything works - ok
HTML checked for errors - ok
CSS checked for errors - ok

Answer 7

https://readymag.com/tehnovedro/488569/5/
And here are the design compliance tests

Answer 8

https://validator.w3.org/