The function getAttribute for isPermaLink is returning a null value when accessing an element within an RSS feed using

Question

The function getAttribute for isPermaLink is returning a null value when accessing an element within an RSS feed using

Struggling to retrieve the value of the isPermaLink attribute using protractor, I have attempted various methods.

While successful in fetching values from other elements, the isPermaLink always returns null.

HTML

<guid isPermaLink="false">public-anger-grows-over-coronavirus-123829864.html</guid>

Code

const isPerma = element(by.xpath('//guid[@isPermaLink]')).
console.log('isPermaLink value ', await isPerma.getAttribute('isPermaLink'));

Interestingly, when trying with other elements like the source tag, I am able to retrieve the value.

<source url="http://www.ap.org/">Associated Press</source>

Element located in dev tools https://i.stack.imgur.com/A2qDP.png

Accessing Yahoo Rss feed:

javascript xml selenium protractor selenium-chromedriver

Answer 1

Answer №1

Here are some insights on how to retrieve attributes using browser automation tools:

One way to retrieve an attribute is by executing JavaScript code:

let $permaLink = $$('guid[isPermaLink]').get(0);
let attr = await browser.executeScript('return arguments[0].getAttribute("isPermaLink")', $permaLink.getWebElement());
console.log(attr) // false

Understanding why
```
await element.getAttribute('isPermaLink')
```
may not work as expected:

Sometimes, when working with iframes or nested documents within a webpage, interacting with elements can be tricky. In such cases, you may need to switch frames in order to access the desired element. Protractor, for example, requires switching frames before interacting with elements inside them.

Similarly, when dealing with XML embedded within an HTML page, Protractor operates at the document level and may encounter difficulties accessing elements within the inner document. Attempting to use the switchTo method in this scenario may result in an error message indicating that the element is not a frame. While Protractor's frame-switching functionality is primarily intended for iframes, the underlying concept applies to navigating through nested documents.

Answer 2

Here are some insights on how to retrieve attributes using browser automation tools:

One way to retrieve an attribute is by executing JavaScript code:

let $permaLink = $$('guid[isPermaLink]').get(0);
let attr = await browser.executeScript('return arguments[0].getAttribute("isPermaLink")', $permaLink.getWebElement());
console.log(attr) // false

Understanding why
```
await element.getAttribute('isPermaLink')
```
may not work as expected:

Sometimes, when working with iframes or nested documents within a webpage, interacting with elements can be tricky. In such cases, you may need to switch frames in order to access the desired element. Protractor, for example, requires switching frames before interacting with elements inside them.

Similarly, when dealing with XML embedded within an HTML page, Protractor operates at the document level and may encounter difficulties accessing elements within the inner document. Attempting to use the switchTo method in this scenario may result in an error message indicating that the element is not a frame. While Protractor's frame-switching functionality is primarily intended for iframes, the underlying concept applies to navigating through nested documents.

The function getAttribute for isPermaLink is returning a null value when accessing an element within an RSS feed using

Answer №1

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