使用Canopy保存生成的HTML

Question

Can a website's generated HTML be saved using Canopy? Looking at the documentation under 'Getting Started' , I could not find anything related.

Answer 1

You can run arbitrary JavaScript using js , document.documentElement.outerHTML will return the current DOM, so

let html = js "return document.documentElement.outerHTML" |> string

does the trick.

Answer 2

Canopy is a wrapper around Selenium that provides some useful helper functions. But it also provides access to the Selenium IWebElement instances in case you need them, via the element function (halfway down the page; there don't seem to be internal anchors in that page so I couldn't link directly to the function). Then once you have the IWebElement object, your problem becomes similar to this one , where the answer seems to be elem.getAttribute("innerHtml") where elem is the elememt whose content you want (which might even be the html element). Note that the innerHtml attribute is not a standard DOM attribute, so this won't work with all Selenium drivers; it will be dependent on which browser you're running in. But it apparently works on all major Web browsers.

See Get HTML Source of WebElement in Selenium WebDriver using Python for a related question using Python, which has more discussion about whether the innetHtml attribute will work in all browsers. If it doesn't, Canopy also has the js function, which you could leverage to run some Javascript to get the HTML you're looking for -- but if you're having trouble with that, you probably need to ask a Javascript question rather than an F# question.